74438637336 has 192 divisors, whose sum is σ = 242070472800. Its totient is φ = 21132244224.

The previous prime is 74438637319. The next prime is 74438637347. The reversal of 74438637336 is 63373683447.

It is a happy number.

It is a super-2 number, since 2×74438637336² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1639290 + ... + 1684086.

Almost surely, 2^74438637336 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 74438637336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121035236400).

74438637336 is an abundant number, since it is smaller than the sum of its proper divisors (167631835464).

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

74438637336 is a wasteful number, since it uses less digits than its factorization.

74438637336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44983 (or 44966 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 54.

The spelling of 74438637336 in words is "seventy-four billion, four hundred thirty-eight million, six hundred thirty-seven thousand, three hundred thirty-six".