125319814542 has 24 divisors (see below), whose sum is σ = 292412901144. Its totient is φ = 38559942864.

The previous prime is 125319814507. The next prime is 125319814579. The reversal of 125319814542 is 245418913521.

125319814542 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 1 + 98 + 14 + 542 = 666.

It is a super-4 number, since 4×125319814542⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 267777148 + ... + 267777615.

It is an arithmetic number, because the mean of its divisors is an integer number (12183870881).

Almost surely, 2^125319814542 is an apocalyptic number.

125319814542 is an abundant number, since it is smaller than the sum of its proper divisors (167093086602).

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

125319814542 is a wasteful number, since it uses less digits than its factorization.

125319814542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535554784 (or 535554781 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The spelling of 125319814542 in words is "one hundred twenty-five billion, three hundred nineteen million, eight hundred fourteen thousand, five hundred forty-two".