20677495048 has 32 divisors (see below), whose sum is σ = 45144941760. Its totient is φ = 8694578880.

The previous prime is 20677495031. The next prime is 20677495057. The reversal of 20677495048 is 84059477602.

It is a junction number, because it is equal to n+sod(n) for n = 20677494986 and 20677495004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3480438 + ... + 3486373.

It is an arithmetic number, because the mean of its divisors is an integer number (1410779430).

Almost surely, 2^20677495048 is an apocalyptic number.

20677495048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20677495048 is an abundant number, since it is smaller than the sum of its proper divisors (24467446712).

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

20677495048 is a wasteful number, since it uses less digits than its factorization.

20677495048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966877 (or 6966873 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 20677495048 in words is "twenty billion, six hundred seventy-seven million, four hundred ninety-five thousand, forty-eight".