425379130639 has 2 divisors, whose sum is σ = 425379130640. Its totient is φ = 425379130638.

The previous prime is 425379130493. The next prime is 425379130663. The reversal of 425379130639 is 936031973524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425379130639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425379130679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212689565319 + 212689565320.

It is an arithmetic number, because the mean of its divisors is an integer number (212689565320).

Almost surely, 2^425379130639 is an apocalyptic number.

425379130639 is a deficient number, since it is larger than the sum of its proper divisors (1).

425379130639 is an equidigital number, since it uses as much as digits as its factorization.

425379130639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 52.

The spelling of 425379130639 in words is "four hundred twenty-five billion, three hundred seventy-nine million, one hundred thirty thousand, six hundred thirty-nine".