124372861519 has 2 divisors, whose sum is σ = 124372861520. Its totient is φ = 124372861518.

The previous prime is 124372861489. The next prime is 124372861541. The reversal of 124372861519 is 915168273421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124372861519 - 2²⁵ = 124339307087 is a prime.

It is a super-2 number, since 2×124372861519² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124372861579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62186430759 + 62186430760.

It is an arithmetic number, because the mean of its divisors is an integer number (62186430760).

Almost surely, 2^124372861519 is an apocalyptic number.

124372861519 is a deficient number, since it is larger than the sum of its proper divisors (1).

124372861519 is an equidigital number, since it uses as much as digits as its factorization.

124372861519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 49.

The spelling of 124372861519 in words is "one hundred twenty-four billion, three hundred seventy-two million, eight hundred sixty-one thousand, five hundred nineteen".