125967496517 has 2 divisors, whose sum is σ = 125967496518. Its totient is φ = 125967496516.

The previous prime is 125967496513. The next prime is 125967496619. The reversal of 125967496517 is 715694769521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124094857441 + 1872639076 = 352271^2 + 43274^2 .

It is a cyclic number.

It is not a de Polignac number, because 125967496517 - 2² = 125967496513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125967496517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125967496511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62983748258 + 62983748259.

It is an arithmetic number, because the mean of its divisors is an integer number (62983748259).

Almost surely, 2^125967496517 is an apocalyptic number.

It is an amenable number.

125967496517 is a deficient number, since it is larger than the sum of its proper divisors (1).

125967496517 is an equidigital number, since it uses as much as digits as its factorization.

125967496517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28576800, while the sum is 62.

The spelling of 125967496517 in words is "one hundred twenty-five billion, nine hundred sixty-seven million, four hundred ninety-six thousand, five hundred seventeen".