125438569694 has 64 divisors (see below), whose sum is σ = 198792506880. Its totient is φ = 59291688960.

The previous prime is 125438569693. The next prime is 125438569699. The reversal of 125438569694 is 496965834521.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125438569691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211531862 + ... + 211532454.

It is an arithmetic number, because the mean of its divisors is an integer number (3106132920).

Almost surely, 2^125438569694 is an apocalyptic number.

125438569694 is a deficient number, since it is larger than the sum of its proper divisors (73353937186).

125438569694 is a wasteful number, since it uses less digits than its factorization.

125438569694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125.

The product of its digits is 55987200, while the sum is 62.

The spelling of 125438569694 in words is "one hundred twenty-five billion, four hundred thirty-eight million, five hundred sixty-nine thousand, six hundred ninety-four".