20886753437 has 16 divisors (see below), whose sum is σ = 23001922944. Its totient is φ = 18964765600.

The previous prime is 20886753379. The next prime is 20886753443. The reversal of 20886753437 is 73435768802.

It is not a de Polignac number, because 20886753437 - 2¹⁶ = 20886687901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20886753497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1131512 + ... + 1149822.

It is an arithmetic number, because the mean of its divisors is an integer number (1437620184).

Almost surely, 2^20886753437 is an apocalyptic number.

It is an amenable number.

20886753437 is a deficient number, since it is larger than the sum of its proper divisors (2115169507).

20886753437 is an equidigital number, since it uses as much as digits as its factorization.

20886753437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19201 (or 19179 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 20886753437 in words is "twenty billion, eight hundred eighty-six million, seven hundred fifty-three thousand, four hundred thirty-seven".