30865307875 has 32 divisors (see below), whose sum is σ = 38870597376. Its totient is φ = 24468480000.

The previous prime is 30865307873. The next prime is 30865307909. The reversal of 30865307875 is 57870356803.

It is not a de Polignac number, because 30865307875 - 2¹ = 30865307873 is a prime.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30865307873) 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, 6535515 + ... + 6540235.

It is an arithmetic number, because the mean of its divisors is an integer number (1214706168).

Almost surely, 2^30865307875 is an apocalyptic number.

30865307875 is a deficient number, since it is larger than the sum of its proper divisors (8005289501).

30865307875 is a wasteful number, since it uses less digits than its factorization.

30865307875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200 (or 5190 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 30865307875 in words is "thirty billion, eight hundred sixty-five million, three hundred seven thousand, eight hundred seventy-five".