124881137687 has 16 divisors (see below), whose sum is σ = 129652300512. Its totient is φ = 120203066880.

The previous prime is 124881137677. The next prime is 124881137713. The reversal of 124881137687 is 786731188421.

It is a cyclic number.

It is not a de Polignac number, because 124881137687 - 2⁸ = 124881137431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124881137657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847373 + ... + 983769.

It is an arithmetic number, because the mean of its divisors is an integer number (8103268782).

Almost surely, 2^124881137687 is an apocalyptic number.

124881137687 is a deficient number, since it is larger than the sum of its proper divisors (4771162825).

124881137687 is a wasteful number, since it uses less digits than its factorization.

124881137687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136738.

The product of its digits is 3612672, while the sum is 56.

The spelling of 124881137687 in words is "one hundred twenty-four billion, eight hundred eighty-one million, one hundred thirty-seven thousand, six hundred eighty-seven".