20890907037 has 288 divisors, whose sum is σ = 44415221760. Its totient is φ = 9111916800.

The previous prime is 20890907029. The next prime is 20890907039. The reversal of 20890907037 is 73070909802.

It is not a de Polignac number, because 20890907037 - 2³ = 20890907029 is a prime.

It is a super-2 number, since 2×20890907037² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20890906983 and 20890907001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20890907039) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 164495268 + ... + 164495394.

It is an arithmetic number, because the mean of its divisors is an integer number (154219520).

Almost surely, 2^20890907037 is an apocalyptic number.

It is an amenable number.

20890907037 is an abundant number, since it is smaller than the sum of its proper divisors (23524314723).

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

20890907037 is a wasteful number, since it uses less digits than its factorization.

20890907037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 20890907037 in words is "twenty billion, eight hundred ninety million, nine hundred seven thousand, thirty-seven".