9870672553 has 32 divisors (see below), whose sum is σ = 11626905600. Its totient is φ = 8375930640.

The previous prime is 9870672491. The next prime is 9870672601. The reversal of 9870672553 is 3552760789.

It is not a de Polignac number, because 9870672553 - 2⁹ = 9870672041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9870672553.

It is not an unprimeable number, because it can be changed into a prime (9870670553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25771800 + ... + 25772182.

It is an arithmetic number, because the mean of its divisors is an integer number (363340800).

Almost surely, 2^9870672553 is an apocalyptic number.

It is an amenable number.

9870672553 is a deficient number, since it is larger than the sum of its proper divisors (1756233047).

9870672553 is a wasteful number, since it uses less digits than its factorization.

9870672553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 52.

The square root of 9870672553 is about 99351.2584369217. The cubic root of 9870672553 is about 2145.1067772674.

The spelling of 9870672553 in words is "nine billion, eight hundred seventy million, six hundred seventy-two thousand, five hundred fifty-three".