124779917052 has 72 divisors (see below), whose sum is σ = 360510040800. Its totient is φ = 35647970688.

The previous prime is 124779917039. The next prime is 124779917107. The reversal of 124779917052 is 250719977421.

124779917052 is a `hidden beast` number, since 12 + 477 + 9 + 91 + 70 + 5 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 124779917052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3831574 + ... + 3864002.

It is an arithmetic number, because the mean of its divisors is an integer number (5007083900).

Almost surely, 2^124779917052 is an apocalyptic number.

124779917052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

124779917052 is an abundant number, since it is smaller than the sum of its proper divisors (235730123748).

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

124779917052 is a wasteful number, since it uses less digits than its factorization.

124779917052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47715 (or 47710 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 54.

The spelling of 124779917052 in words is "one hundred twenty-four billion, seven hundred seventy-nine million, nine hundred seventeen thousand, fifty-two".