30640294475 has 24 divisors (see below), whose sum is σ = 44157649920. Its totient is φ = 20654370720.

The previous prime is 30640294469. The next prime is 30640294621. The reversal of 30640294475 is 57449204603.

It is not a de Polignac number, because 30640294475 - 2⁴ = 30640294459 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1473467 + ... + 1494116.

It is an arithmetic number, because the mean of its divisors is an integer number (1839902080).

Almost surely, 2^30640294475 is an apocalyptic number.

30640294475 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30640294475 is a deficient number, since it is larger than the sum of its proper divisors (13517355445).

30640294475 is a wasteful number, since it uses less digits than its factorization.

30640294475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967659 (or 2967654 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 30640294475 in words is "thirty billion, six hundred forty million, two hundred ninety-four thousand, four hundred seventy-five".