30657319892 has 12 divisors (see below), whose sum is σ = 53657948820. Its totient is φ = 15326477376.

The previous prime is 30657319879. The next prime is 30657320003. The reversal of 30657319892 is 29891375603.

It can be written as a sum of positive squares in 2 ways, for example, as 13706321476 + 16950998416 = 117074^2 + 130196^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 513833 + ... + 570384.

It is an arithmetic number, because the mean of its divisors is an integer number (4471495735).

Almost surely, 2^30657319892 is an apocalyptic number.

It is an amenable number.

30657319892 is a deficient number, since it is larger than the sum of its proper divisors (23000628928).

30657319892 is a wasteful number, since it uses less digits than its factorization.

30657319892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091290 (or 1091288 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 30657319892 in words is "thirty billion, six hundred fifty-seven million, three hundred nineteen thousand, eight hundred ninety-two".