124787696868 has 18 divisors (see below), whose sum is σ = 315435567174. Its totient is φ = 41595898944.

The previous prime is 124787696843. The next prime is 124787696947. The reversal of 124787696868 is 868696787421.

124787696868 is a `hidden beast` number, since 1 + 2 + 478 + 7 + 6 + 96 + 8 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109284458724 + 15503238144 = 330582^2 + 124512^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 124787696796 and 124787696805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1733162421 + ... + 1733162492.

Almost surely, 2^124787696868 is an apocalyptic number.

124787696868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

124787696868 is an abundant number, since it is smaller than the sum of its proper divisors (190647870306).

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

124787696868 is a wasteful number, since it uses less digits than its factorization.

124787696868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466324923 (or 3466324918 counting only the distinct ones).

The product of its digits is 390168576, while the sum is 72.

The spelling of 124787696868 in words is "one hundred twenty-four billion, seven hundred eighty-seven million, six hundred ninety-six thousand, eight hundred sixty-eight".