125710602649 has 2 divisors, whose sum is σ = 125710602650. Its totient is φ = 125710602648.

The previous prime is 125710602613. The next prime is 125710602659. The reversal of 125710602649 is 946206017521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80000162649 + 45710440000 = 282843^2 + 213800^2 .

It is a cyclic number.

It is not a de Polignac number, because 125710602649 - 2³⁵ = 91350864281 is a prime.

It is not a weakly prime, because it can be changed into another prime (125710602659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62855301324 + 62855301325.

It is an arithmetic number, because the mean of its divisors is an integer number (62855301325).

Almost surely, 2^125710602649 is an apocalyptic number.

It is an amenable number.

125710602649 is a deficient number, since it is larger than the sum of its proper divisors (1).

125710602649 is an equidigital number, since it uses as much as digits as its factorization.

125710602649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 125710602649 in words is "one hundred twenty-five billion, seven hundred ten million, six hundred two thousand, six hundred forty-nine".