9975372086 has 4 divisors (see below), whose sum is σ = 14963058132. Its totient is φ = 4987686042.

The previous prime is 9975372059. The next prime is 9975372091. The reversal of 9975372086 is 6802735799.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2493843020 + ... + 2493843023.

It is an arithmetic number, because the mean of its divisors is an integer number (3740764533).

Almost surely, 2^9975372086 is an apocalyptic number.

9975372086 is a deficient number, since it is larger than the sum of its proper divisors (4987686046).

9975372086 is a wasteful number, since it uses less digits than its factorization.

9975372086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987686045.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The square root of 9975372086 is about 99876.7845197271. The cubic root of 9975372086 is about 2152.6645950352.

The spelling of 9975372086 in words is "nine billion, nine hundred seventy-five million, three hundred seventy-two thousand, eighty-six".