9818170972 has 24 divisors (see below), whose sum is σ = 17242776320. Its totient is φ = 4891691520.

The previous prime is 9818170963. The next prime is 9818170993. The reversal of 9818170972 is 2790718189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775572 + ... + 1781092.

Almost surely, 2^9818170972 is an apocalyptic number.

It is an amenable number.

9818170972 is a deficient number, since it is larger than the sum of its proper divisors (7424605348).

9818170972 is a wasteful number, since it uses less digits than its factorization.

9818170972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7021 (or 7019 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 52.

The square root of 9818170972 is about 99086.6841306136. The cubic root of 9818170972 is about 2141.2967780108.

The spelling of 9818170972 in words is "nine billion, eight hundred eighteen million, one hundred seventy thousand, nine hundred seventy-two".