20941513488 has 120 divisors (see below), whose sum is σ = 68243542848. Its totient is φ = 5870382336.

The previous prime is 20941513457. The next prime is 20941513511. The reversal of 20941513488 is 88431514902.

20941513488 is a `hidden beast` number, since 2 + 0 + 94 + 1 + 513 + 48 + 8 = 666.

It is a super-2 number, since 2×20941513488² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142570 + ... + 249417.

Almost surely, 2^20941513488 is an apocalyptic number.

20941513488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20941513488 is an abundant number, since it is smaller than the sum of its proper divisors (47302029360).

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

20941513488 is a wasteful number, since it uses less digits than its factorization.

20941513488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392061 (or 392052 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 20941513488 in words is "twenty billion, nine hundred forty-one million, five hundred thirteen thousand, four hundred eighty-eight".