20373702772 has 24 divisors (see below), whose sum is σ = 37759450176. Its totient is φ = 9598509888.

The previous prime is 20373702737. The next prime is 20373702799. The reversal of 20373702772 is 27720737302.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 1646473 + ... + 1658800.

It is an arithmetic number, because the mean of its divisors is an integer number (1573310424).

Almost surely, 2^20373702772 is an apocalyptic number.

It is an amenable number.

20373702772 is a deficient number, since it is larger than the sum of its proper divisors (17385747404).

20373702772 is a wasteful number, since it uses less digits than its factorization.

20373702772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305367 (or 3305365 counting only the distinct ones).

The product of its (nonzero) digits is 172872, while the sum is 40.

The spelling of 20373702772 in words is "twenty billion, three hundred seventy-three million, seven hundred two thousand, seven hundred seventy-two".