74309438160 has 120 divisors (see below), whose sum is σ = 250438372704. Its totient is φ = 19745775360.

The previous prime is 74309438153. The next prime is 74309438173. The reversal of 74309438160 is 6183490347.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21415 + ... + 386105.

Almost surely, 2^74309438160 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 74309438160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125219186352).

74309438160 is an abundant number, since it is smaller than the sum of its proper divisors (176128934544).

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

74309438160 is a wasteful number, since it uses less digits than its factorization.

74309438160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364993 (or 364984 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 74309438160 in words is "seventy-four billion, three hundred nine million, four hundred thirty-eight thousand, one hundred sixty".