75400857947904 has 144 divisors (see below), whose sum is σ = 210806680896000. Its totient is φ = 23879504416768.

The previous prime is 75400857947897. The next prime is 75400857947911. The reversal of 75400857947904 is 40974975800457.

It is an interprime number because it is at equal distance from previous prime (75400857947897) and next prime (75400857947911).

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11692284 + ... + 16956155.

It is an arithmetic number, because the mean of its divisors is an integer number (1463935284000).

Almost surely, 2^{75400857947904} is an apocalyptic number.

It is an amenable number.

75400857947904 is an abundant number, since it is smaller than the sum of its proper divisors (135405822948096).

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

75400857947904 is a wasteful number, since it uses less digits than its factorization.

75400857947904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28648630 (or 28648616 counting only the distinct ones).

The product of its (nonzero) digits is 355622400, while the sum is 69.

The spelling of 75400857947904 in words is "seventy-five trillion, four hundred billion, eight hundred fifty-seven million, nine hundred forty-seven thousand, nine hundred four".