124115561887 has 8 divisors (see below), whose sum is σ = 124207955712. Its totient is φ = 124023207000.

The previous prime is 124115561873. The next prime is 124115561993. The reversal of 124115561887 is 788165511421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124115561887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124115561887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124115561807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9416812 + ... + 9429982.

It is an arithmetic number, because the mean of its divisors is an integer number (15525994464).

Almost surely, 2^124115561887 is an apocalyptic number.

124115561887 is a deficient number, since it is larger than the sum of its proper divisors (92393825).

124115561887 is a wasteful number, since it uses less digits than its factorization.

124115561887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19469.

The product of its digits is 537600, while the sum is 49.

The spelling of 124115561887 in words is "one hundred twenty-four billion, one hundred fifteen million, five hundred sixty-one thousand, eight hundred eighty-seven".