74532840816 has 200 divisors, whose sum is σ = 225566098560. Its totient is φ = 21205500288.

The previous prime is 74532840803. The next prime is 74532840829. The reversal of 74532840816 is 61804823547.

It is an interprime number because it is at equal distance from previous prime (74532840803) and next prime (74532840829).

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 polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30308995 + ... + 30311453.

Almost surely, 2^74532840816 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 74532840816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112783049280).

74532840816 is an abundant number, since it is smaller than the sum of its proper divisors (151033257744).

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

74532840816 is a wasteful number, since it uses less digits than its factorization.

74532840816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 74532840816 in words is "seventy-four billion, five hundred thirty-two million, eight hundred forty thousand, eight hundred sixteen".