30901997475 has 48 divisors (see below), whose sum is σ = 57486796800. Its totient is φ = 16272416160.

The previous prime is 30901997459. The next prime is 30901997491. The reversal of 30901997475 is 57479910903.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30901997459) and next prime (30901997491).

It is not a de Polignac number, because 30901997475 - 2⁴ = 30901997459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 236427 + ... + 343076.

It is an arithmetic number, because the mean of its divisors is an integer number (1197641600).

Almost surely, 2^30901997475 is an apocalyptic number.

30901997475 is a deficient number, since it is larger than the sum of its proper divisors (26584799325).

30901997475 is a wasteful number, since it uses less digits than its factorization.

30901997475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579601 (or 579590 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 54.

The spelling of 30901997475 in words is "thirty billion, nine hundred one million, nine hundred ninety-seven thousand, four hundred seventy-five".