30641707820 has 48 divisors (see below), whose sum is σ = 65489346720. Its totient is φ = 12039530496.

The previous prime is 30641707781. The next prime is 30641707847. The reversal of 30641707820 is 2870714603.

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 15 ways as a sum of consecutive naturals, for example, 1610684 + ... + 1629596.

It is an arithmetic number, because the mean of its divisors is an integer number (1364361390).

Almost surely, 2^30641707820 is an apocalyptic number.

It is an amenable number.

30641707820 is an abundant number, since it is smaller than the sum of its proper divisors (34847638900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30641707820 is a wasteful number, since it uses less digits than its factorization.

30641707820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20354 (or 20352 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 30641707820 in words is "thirty billion, six hundred forty-one million, seven hundred seven thousand, eight hundred twenty".