75561497008 has 10 divisors (see below), whose sum is σ = 146400400484. Its totient is φ = 37780748496.

The previous prime is 75561496993. The next prime is 75561497021. The reversal of 75561497008 is 80079416557.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2361296766 + ... + 2361296797.

Almost surely, 2^75561497008 is an apocalyptic number.

It is an amenable number.

75561497008 is a deficient number, since it is larger than the sum of its proper divisors (70838903476).

75561497008 is a wasteful number, since it uses less digits than its factorization.

75561497008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722593571 (or 4722593565 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 75561497008 in words is "seventy-five billion, five hundred sixty-one million, four hundred ninety-seven thousand, eight".