75561497004 has 48 divisors (see below), whose sum is σ = 202095315968. Its totient is φ = 21524928768.

The previous prime is 75561496993. The next prime is 75561497021. The reversal of 75561497004 is 40079416557.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1306324 + ... + 1362939.

Almost surely, 2^75561497004 is an apocalyptic number.

It is an amenable number.

75561497004 is an abundant number, since it is smaller than the sum of its proper divisors (126533818964).

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

75561497004 is a wasteful number, since it uses less digits than its factorization.

75561497004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669614 (or 2669612 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 75561497004 in words is "seventy-five billion, five hundred sixty-one million, four hundred ninety-seven thousand, four".