30957906188 has 24 divisors (see below), whose sum is σ = 59675266560. Its totient is φ = 13935154320.

The previous prime is 30957906149. The next prime is 30957906197. The reversal of 30957906188 is 88160975903.

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, 3410948 + ... + 3420011.

It is an arithmetic number, because the mean of its divisors is an integer number (2486469440).

Almost surely, 2^30957906188 is an apocalyptic number.

It is an amenable number.

30957906188 is a deficient number, since it is larger than the sum of its proper divisors (28717360372).

30957906188 is a wasteful number, since it uses less digits than its factorization.

30957906188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6831077 (or 6831075 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 30957906188 in words is "thirty billion, nine hundred fifty-seven million, nine hundred six thousand, one hundred eighty-eight".