125991876371 has 2 divisors, whose sum is σ = 125991876372. Its totient is φ = 125991876370.

The previous prime is 125991876359. The next prime is 125991876397. The reversal of 125991876371 is 173678199521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125991876371 is a prime.

It is a super-2 number, since 2×125991876371² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125991876371.

It is not a weakly prime, because it can be changed into another prime (125991876301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62995938185 + 62995938186.

It is an arithmetic number, because the mean of its divisors is an integer number (62995938186).

Almost surely, 2^125991876371 is an apocalyptic number.

125991876371 is a deficient number, since it is larger than the sum of its proper divisors (1).

125991876371 is an equidigital number, since it uses as much as digits as its factorization.

125991876371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 59.

The spelling of 125991876371 in words is "one hundred twenty-five billion, nine hundred ninety-one million, eight hundred seventy-six thousand, three hundred seventy-one".