30875250905 has 16 divisors (see below), whose sum is σ = 37116975168. Its totient is φ = 24655800000.

The previous prime is 30875250881. The next prime is 30875250911. The reversal of 30875250905 is 50905257803.

It is not a de Polignac number, because 30875250905 - 2⁸ = 30875250649 is a prime.

It is a super-2 number, since 2×30875250905² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9495530 + ... + 9498780.

It is an arithmetic number, because the mean of its divisors is an integer number (2319810948).

Almost surely, 2^30875250905 is an apocalyptic number.

It is an amenable number.

30875250905 is a deficient number, since it is larger than the sum of its proper divisors (6241724263).

30875250905 is a wasteful number, since it uses less digits than its factorization.

30875250905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6088.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 30875250905 in words is "thirty billion, eight hundred seventy-five million, two hundred fifty thousand, nine hundred five".