74359634064 has 120 divisors (see below), whose sum is σ = 201667509120. Its totient is φ = 23607741696.

The previous prime is 74359634059. The next prime is 74359634081. The reversal of 74359634064 is 46043695347.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 74359633998 and 74359634016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6062562 + ... + 6074814.

It is an arithmetic number, because the mean of its divisors is an integer number (1680562576).

Almost surely, 2^74359634064 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 74359634064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100833754560).

74359634064 is an abundant number, since it is smaller than the sum of its proper divisors (127307875056).

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

74359634064 is a wasteful number, since it uses less digits than its factorization.

74359634064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12549 (or 12520 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 51.

The spelling of 74359634064 in words is "seventy-four billion, three hundred fifty-nine million, six hundred thirty-four thousand, sixty-four".