427256484657 has 32 divisors (see below), whose sum is σ = 627720560640. Its totient is φ = 257463360000.

The previous prime is 427256484649. The next prime is 427256484659. The reversal of 427256484657 is 756484652724.

427256484657 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 427256484657 - 2³ = 427256484649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 427256484657.

It is not an unprimeable number, because it can be changed into a prime (427256484659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1577344 + ... + 1828257.

It is an arithmetic number, because the mean of its divisors is an integer number (19616267520).

Almost surely, 2^427256484657 is an apocalyptic number.

It is an amenable number.

427256484657 is a deficient number, since it is larger than the sum of its proper divisors (200464075983).

427256484657 is a wasteful number, since it uses less digits than its factorization.

427256484657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405725.

The product of its digits is 90316800, while the sum is 60.

The spelling of 427256484657 in words is "four hundred twenty-seven billion, two hundred fifty-six million, four hundred eighty-four thousand, six hundred fifty-seven".