425129908605 has 16 divisors (see below), whose sum is σ = 680232833280. Its totient is φ = 226727624768.

The previous prime is 425129908591. The next prime is 425129908649. The reversal of 425129908605 is 506809921524.

It is a cyclic number.

It is not a de Polignac number, because 425129908605 - 2¹³ = 425129900413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86670 + ... + 926159.

It is an arithmetic number, because the mean of its divisors is an integer number (42514552080).

Almost surely, 2^425129908605 is an apocalyptic number.

It is an amenable number.

425129908605 is a deficient number, since it is larger than the sum of its proper divisors (255102924675).

425129908605 is a wasteful number, since it uses less digits than its factorization.

425129908605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040820.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 425129908605 in words is "four hundred twenty-five billion, one hundred twenty-nine million, nine hundred eight thousand, six hundred five".