74534691504 has 320 divisors, whose sum is σ = 249334041600. Its totient is φ = 18656096256.

The previous prime is 74534691499. The next prime is 74534691527. The reversal of 74534691504 is 40519643547.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7468662 + ... + 7478634.

It is an arithmetic number, because the mean of its divisors is an integer number (779168880).

Almost surely, 2^74534691504 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 74534691504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124667020800).

74534691504 is an abundant number, since it is smaller than the sum of its proper divisors (174799350096).

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

74534691504 is a wasteful number, since it uses less digits than its factorization.

74534691504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10092 (or 10086 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 74534691504 in words is "seventy-four billion, five hundred thirty-four million, six hundred ninety-one thousand, five hundred four".