125387563892 has 18 divisors (see below), whose sum is σ = 231584928498. Its totient is φ = 59394108528.

The previous prime is 125387563891. The next prime is 125387563913. The reversal of 125387563892 is 298365783521.

It can be written as a sum of positive squares in only one way, i.e., 124837848976 + 549714916 = 353324^2 + 23446^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125387563891) 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, 43415303 + ... + 43418190.

It is an arithmetic number, because the mean of its divisors is an integer number (12865829361).

Almost surely, 2^125387563892 is an apocalyptic number.

It is an amenable number.

125387563892 is a deficient number, since it is larger than the sum of its proper divisors (106197364606).

125387563892 is a wasteful number, since it uses less digits than its factorization.

125387563892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86833535 (or 86833514 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 59.

The spelling of 125387563892 in words is "one hundred twenty-five billion, three hundred eighty-seven million, five hundred sixty-three thousand, eight hundred ninety-two".