20937501272 has 8 divisors (see below), whose sum is σ = 39257814900. Its totient is φ = 10468750632.

The previous prime is 20937501271. The next prime is 20937501301. The reversal of 20937501272 is 27210573902.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20937501271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1308593822 + ... + 1308593837.

Almost surely, 2^20937501272 is an apocalyptic number.

It is an amenable number.

20937501272 is a deficient number, since it is larger than the sum of its proper divisors (18320313628).

20937501272 is a wasteful number, since it uses less digits than its factorization.

20937501272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617187665 (or 2617187661 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 20937501272 in words is "twenty billion, nine hundred thirty-seven million, five hundred one thousand, two hundred seventy-two".