74740287216 has 200 divisors, whose sum is σ = 226566391680. Its totient is φ = 21229208448.

The previous prime is 74740287203. The next prime is 74740287221. The reversal of 74740287216 is 61278204747.

It is a super-2 number, since 2×74740287216² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20627581 + ... + 20631203.

Almost surely, 2^74740287216 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 74740287216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113283195840).

74740287216 is an abundant number, since it is smaller than the sum of its proper divisors (151826104464).

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

74740287216 is a wasteful number, since it uses less digits than its factorization.

74740287216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841 (or 3814 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 48.

The spelling of 74740287216 in words is "seventy-four billion, seven hundred forty million, two hundred eighty-seven thousand, two hundred sixteen".