20737562292 has 18 divisors (see below), whose sum is σ = 52419949218. Its totient is φ = 6912520752.

The previous prime is 20737562291. The next prime is 20737562311. The reversal of 20737562292 is 29226573702.

It can be written as a sum of positive squares in only one way, i.e., 17552540196 + 3185022096 = 132486^2 + 56436^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20737562291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 288021663 + ... + 288021734.

It is an arithmetic number, because the mean of its divisors is an integer number (2912219401).

Almost surely, 2^20737562292 is an apocalyptic number.

It is an amenable number.

20737562292 is an abundant number, since it is smaller than the sum of its proper divisors (31682386926).

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

20737562292 is a wasteful number, since it uses less digits than its factorization.

20737562292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576043407 (or 576043402 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 20737562292 in words is "twenty billion, seven hundred thirty-seven million, five hundred sixty-two thousand, two hundred ninety-two".