30640573634 has 8 divisors (see below), whose sum is σ = 50139120528. Its totient is φ = 13927533460.

The previous prime is 30640573633. The next prime is 30640573669. The reversal of 30640573634 is 43637504603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30640573591 and 30640573600.

It is not an unprimeable number, because it can be changed into a prime (30640573633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696376652 + ... + 696376695.

It is an arithmetic number, because the mean of its divisors is an integer number (6267390066).

Almost surely, 2^30640573634 is an apocalyptic number.

30640573634 is a deficient number, since it is larger than the sum of its proper divisors (19498546894).

30640573634 is a wasteful number, since it uses less digits than its factorization.

30640573634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392753360.

The product of its (nonzero) digits is 544320, while the sum is 41.

The spelling of 30640573634 in words is "thirty billion, six hundred forty million, five hundred seventy-three thousand, six hundred thirty-four".