425880617697 has 16 divisors (see below), whose sum is σ = 668048028480. Its totient is φ = 267219210816.

The previous prime is 425880617693. The next prime is 425880617713. The reversal of 425880617697 is 796716088524.

425880617697 is a `hidden beast` number, since 4 + 2 + 5 + 8 + 8 + 0 + 617 + 6 + 9 + 7 = 666.

It is not a de Polignac number, because 425880617697 - 2² = 425880617693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425880617693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463921783 + ... + 463922700.

It is an arithmetic number, because the mean of its divisors is an integer number (41753001780).

Almost surely, 2^425880617697 is an apocalyptic number.

It is an amenable number.

425880617697 is a deficient number, since it is larger than the sum of its proper divisors (242167410783).

425880617697 is a wasteful number, since it uses less digits than its factorization.

425880617697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927844509 (or 927844503 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 63.

The spelling of 425880617697 in words is "four hundred twenty-five billion, eight hundred eighty million, six hundred seventeen thousand, six hundred ninety-seven".