256046746770 has 48 divisors (see below), whose sum is σ = 666106091352. Its totient is φ = 68239691520.

The previous prime is 256046746757. The next prime is 256046746777. The reversal of 256046746770 is 77647640652.

256046746770 is a `hidden beast` number, since 2 + 56 + 0 + 4 + 67 + 467 + 70 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 193532245929 + 62514500841 = 439923^2 + 250029^2 .

It is not an unprimeable number, because it can be changed into a prime (256046746777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 664851 + ... + 976790.

Almost surely, 2^256046746770 is an apocalyptic number.

256046746770 is an abundant number, since it is smaller than the sum of its proper divisors (410059344582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256046746770 is a wasteful number, since it uses less digits than its factorization.

256046746770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643387 (or 1643384 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 54.

The spelling of 256046746770 in words is "two hundred fifty-six billion, forty-six million, seven hundred forty-six thousand, seven hundred seventy".