124691245780 has 12 divisors (see below), whose sum is σ = 261851616180. Its totient is φ = 49876498304.

The previous prime is 124691245733. The next prime is 124691245871. The reversal of 124691245780 is 87542196421.

It can be written as a sum of positive squares in 2 ways, for example, as 62851492804 + 61839752976 = 250702^2 + 248676^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3117281125 + ... + 3117281164.

It is an arithmetic number, because the mean of its divisors is an integer number (21820968015).

Almost surely, 2^124691245780 is an apocalyptic number.

124691245780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124691245780 is an abundant number, since it is smaller than the sum of its proper divisors (137160370400).

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

124691245780 is a wasteful number, since it uses less digits than its factorization.

124691245780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234562298 (or 6234562296 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 124691245780 in words is "one hundred twenty-four billion, six hundred ninety-one million, two hundred forty-five thousand, seven hundred eighty".