125027961543 has 6 divisors (see below), whose sum is σ = 180595944464. Its totient is φ = 83351974356.

The previous prime is 125027961533. The next prime is 125027961599. The reversal of 125027961543 is 345169720521.

125027961543 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 27 + 9 + 615 + 4 + 3 = 666.

It is not a de Polignac number, because 125027961543 - 2²⁴ = 125011184327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125027961523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6945997855 + ... + 6945997872.

Almost surely, 2^125027961543 is an apocalyptic number.

125027961543 is a deficient number, since it is larger than the sum of its proper divisors (55567982921).

125027961543 is a wasteful number, since it uses less digits than its factorization.

125027961543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13891995733 (or 13891995730 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 125027961543 in words is "one hundred twenty-five billion, twenty-seven million, nine hundred sixty-one thousand, five hundred forty-three".