74134033644 has 72 divisors (see below), whose sum is σ = 190552149424. Its totient is φ = 22415500800.

The previous prime is 74134033639. The next prime is 74134033657. The reversal of 74134033644 is 44633043147.

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, 607704 + ... + 719424.

Almost surely, 2^74134033644 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 74134033644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95276074712).

74134033644 is an abundant number, since it is smaller than the sum of its proper divisors (116418115780).

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

74134033644 is a wasteful number, since it uses less digits than its factorization.

74134033644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112207 (or 112194 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 39.

The spelling of 74134033644 in words is "seventy-four billion, one hundred thirty-four million, thirty-three thousand, six hundred forty-four".