74389383936 has 432 divisors, whose sum is σ = 256239110400. Its totient is φ = 21084033024.

The previous prime is 74389383931. The next prime is 74389383941. The reversal of 74389383936 is 63938398347.

74389383936 is a `hidden beast` number, since 7 + 438 + 93 + 83 + 9 + 36 = 666.

It is an interprime number because it is at equal distance from previous prime (74389383931) and next prime (74389383941).

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×74389383936² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (74389383931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60527770 + ... + 60528998.

Almost surely, 2^74389383936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74389383936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128119555200).

74389383936 is an abundant number, since it is smaller than the sum of its proper divisors (181849726464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74389383936 is a wasteful number, since it uses less digits than its factorization.

74389383936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406 (or 1380 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 63.

The spelling of 74389383936 in words is "seventy-four billion, three hundred eighty-nine million, three hundred eighty-three thousand, nine hundred thirty-six".