125688569764 has 24 divisors (see below), whose sum is σ = 227898869688. Its totient is φ = 60604669440.

The previous prime is 125688569759. The next prime is 125688569767. The reversal of 125688569764 is 467965886521.

It can be written as a sum of positive squares in 4 ways, for example, as 35328209764 + 90360360000 = 187958^2 + 300600^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125688569764.

It is not an unprimeable number, because it can be changed into a prime (125688569767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3741007 + ... + 3774454.

It is an arithmetic number, because the mean of its divisors is an integer number (9495786237).

Almost surely, 2^125688569764 is an apocalyptic number.

It is an amenable number.

125688569764 is a deficient number, since it is larger than the sum of its proper divisors (102210299924).

125688569764 is a wasteful number, since it uses less digits than its factorization.

125688569764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7515615 (or 7515613 counting only the distinct ones).

The product of its digits is 174182400, while the sum is 67.

The spelling of 125688569764 in words is "one hundred twenty-five billion, six hundred eighty-eight million, five hundred sixty-nine thousand, seven hundred sixty-four".