125634638420359 has 2 divisors, whose sum is σ = 125634638420360. Its totient is φ = 125634638420358.

The previous prime is 125634638420351. The next prime is 125634638420371. The reversal of 125634638420359 is 953024836436521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125634638420359 - 2³ = 125634638420351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125634638420297 and 125634638420306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125634638420351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62817319210179 + 62817319210180.

It is an arithmetic number, because the mean of its divisors is an integer number (62817319210180).

Almost surely, 2^{125634638420359} is an apocalyptic number.

125634638420359 is a deficient number, since it is larger than the sum of its proper divisors (1).

125634638420359 is an equidigital number, since it uses as much as digits as its factorization.

125634638420359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111974400, while the sum is 61.

The spelling of 125634638420359 in words is "one hundred twenty-five trillion, six hundred thirty-four billion, six hundred thirty-eight million, four hundred twenty thousand, three hundred fifty-nine".