406859287256 has 8 divisors (see below), whose sum is σ = 762861163620. Its totient is φ = 203429643624.

The previous prime is 406859287223. The next prime is 406859287273. The reversal of 406859287256 is 652782958604.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25428705446 + ... + 25428705461.

Almost surely, 2^406859287256 is an apocalyptic number.

It is an amenable number.

406859287256 is a deficient number, since it is larger than the sum of its proper divisors (356001876364).

406859287256 is a wasteful number, since it uses less digits than its factorization.

406859287256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50857410913 (or 50857410909 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 62.

The spelling of 406859287256 in words is "four hundred six billion, eight hundred fifty-nine million, two hundred eighty-seven thousand, two hundred fifty-six".