20763953028 has 72 divisors (see below), whose sum is σ = 64598975168. Its totient is φ = 5476206528.

The previous prime is 20763952999. The next prime is 20763953029. The reversal of 20763953028 is 82035936702.

20763953028 is a `hidden beast` number, since 2 + 0 + 7 + 639 + 5 + 3 + 0 + 2 + 8 = 666.

It is a super-2 number, since 2×20763953028² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20763953029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3165826 + ... + 3172377.

Almost surely, 2^20763953028 is an apocalyptic number.

20763953028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20763953028 is an abundant number, since it is smaller than the sum of its proper divisors (43835022140).

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

20763953028 is a wasteful number, since it uses less digits than its factorization.

20763953028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6338233 (or 6338228 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 20763953028 in words is "twenty billion, seven hundred sixty-three million, nine hundred fifty-three thousand, twenty-eight".