125319814579 has 2 divisors, whose sum is σ = 125319814580. Its totient is φ = 125319814578.

The previous prime is 125319814507. The next prime is 125319814679. The reversal of 125319814579 is 975418913521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125319814579 - 2¹¹ = 125319812531 is a prime.

It is a super-2 number, since 2×125319814579² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125319814079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62659907289 + 62659907290.

It is an arithmetic number, because the mean of its divisors is an integer number (62659907290).

Almost surely, 2^125319814579 is an apocalyptic number.

125319814579 is a deficient number, since it is larger than the sum of its proper divisors (1).

125319814579 is an equidigital number, since it uses as much as digits as its factorization.

125319814579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 55.

The spelling of 125319814579 in words is "one hundred twenty-five billion, three hundred nineteen million, eight hundred fourteen thousand, five hundred seventy-nine".