125451881660798 has 32 divisors (see below), whose sum is σ = 244811802954240. Its totient is φ = 46752254033760.

The previous prime is 125451881660753. The next prime is 125451881660803. The reversal of 125451881660798 is 897066188154521.

It is a super-2 number, since 2×125451881660798² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17709183593 + ... + 17709190676.

It is an arithmetic number, because the mean of its divisors is an integer number (7650368842320).

Almost surely, 2^{125451881660798} is an apocalyptic number.

125451881660798 is a deficient number, since it is larger than the sum of its proper divisors (119359921293442).

125451881660798 is a wasteful number, since it uses less digits than its factorization.

125451881660798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35418374312.

The product of its (nonzero) digits is 232243200, while the sum is 71.

The spelling of 125451881660798 in words is "one hundred twenty-five trillion, four hundred fifty-one billion, eight hundred eighty-one million, six hundred sixty thousand, seven hundred ninety-eight".