125899208044 has 6 divisors (see below), whose sum is σ = 220323614084. Its totient is φ = 62949604020.

The previous prime is 125899208041. The next prime is 125899208077. The reversal of 125899208044 is 440802998521.

It is a happy number.

It is a super-2 number, since 2×125899208044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125899207982 and 125899208000.

It is not an unprimeable number, because it can be changed into a prime (125899208041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15737401002 + ... + 15737401009.

Almost surely, 2^125899208044 is an apocalyptic number.

It is an amenable number.

125899208044 is a deficient number, since it is larger than the sum of its proper divisors (94424406040).

125899208044 is a wasteful number, since it uses less digits than its factorization.

125899208044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31474802015 (or 31474802013 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 125899208044 in words is "one hundred twenty-five billion, eight hundred ninety-nine million, two hundred eight thousand, forty-four".