20507347312 has 20 divisors (see below), whose sum is σ = 39758684200. Its totient is φ = 10247041728.

The previous prime is 20507347291. The next prime is 20507347319. The reversal of 20507347312 is 21374370502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20507347319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388938 + ... + 438505.

It is an arithmetic number, because the mean of its divisors is an integer number (1987934210).

Almost surely, 2^20507347312 is an apocalyptic number.

It is an amenable number.

20507347312 is a deficient number, since it is larger than the sum of its proper divisors (19251336888).

20507347312 is a wasteful number, since it uses less digits than its factorization.

20507347312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829000 (or 828994 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 20507347312 in words is "twenty billion, five hundred seven million, three hundred forty-seven thousand, three hundred twelve".