74037568320 has 224 divisors, whose sum is σ = 268248384000. Its totient is φ = 19209664512.

The previous prime is 74037568249. The next prime is 74037568327. The reversal of 74037568320 is 2386573047.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74037568327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203881 + ... + 435479.

Almost surely, 2^74037568320 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 74037568320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134124192000).

74037568320 is an abundant number, since it is smaller than the sum of its proper divisors (194210815680).

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

74037568320 is a wasteful number, since it uses less digits than its factorization.

74037568320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231662 (or 231646 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 74037568320 in words is "seventy-four billion, thirty-seven million, five hundred sixty-eight thousand, three hundred twenty".