30875772165 has 32 divisors (see below), whose sum is σ = 57138794496. Its totient is φ = 13944578880.

The previous prime is 30875772163. The next prime is 30875772203. The reversal of 30875772165 is 56127757803.

It is not a de Polignac number, because 30875772165 - 2¹ = 30875772163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30875772163) 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, 1762701 + ... + 1780130.

It is an arithmetic number, because the mean of its divisors is an integer number (1785587328).

Almost surely, 2^30875772165 is an apocalyptic number.

30875772165 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30875772165 is a deficient number, since it is larger than the sum of its proper divisors (26263022331).

30875772165 is a wasteful number, since it uses less digits than its factorization.

30875772165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542929.

The product of its (nonzero) digits is 2469600, while the sum is 51.

The spelling of 30875772165 in words is "thirty billion, eight hundred seventy-five million, seven hundred seventy-two thousand, one hundred sixty-five".