124781323536 has 45 divisors (see below), whose sum is σ = 349226262021. Its totient is φ = 41592361536.

The previous prime is 124781323523. The next prime is 124781323547. The reversal of 124781323536 is 635323187421.

The square root of 124781323536 is 353244.

It is a perfect power (a square), and thus also a powerful number.

124781323536 is a `hidden beast` number, since 1 + 2 + 4 + 7 + 81 + 32 + 3 + 536 = 666.

It can be written as a sum of positive squares in only one way, i.e., 121480131600 + 3301191936 = 348540^2 + 57456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 124781323491 and 124781323500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4224210 + ... + 4253646.

Almost surely, 2^124781323536 is an apocalyptic number.

124781323536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

124781323536 is the 353244-th square number.

It is an amenable number.

124781323536 is an abundant number, since it is smaller than the sum of its proper divisors (224444938485).

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

124781323536 is an frugal number, since it uses more digits than its factorization.

124781323536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58888 (or 29442 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 124781323536 in words is "one hundred twenty-four billion, seven hundred eighty-one million, three hundred twenty-three thousand, five hundred thirty-six".