256132572342 has 8 divisors (see below), whose sum is σ = 512265144696. Its totient is φ = 85377524112.

The previous prime is 256132572313. The next prime is 256132572359. The reversal of 256132572342 is 243275231652.

It is a sphenic number, since it is the product of 3 distinct primes.

256132572342 is an admirable number.

It is a super-2 number, since 2×256132572342² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256132572294 and 256132572303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21344381023 + ... + 21344381034.

It is an arithmetic number, because the mean of its divisors is an integer number (64033143087).

Almost surely, 2^256132572342 is an apocalyptic number.

256132572342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256132572342 is a wasteful number, since it uses less digits than its factorization.

256132572342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42688762062.

The product of its digits is 604800, while the sum is 42.

The spelling of 256132572342 in words is "two hundred fifty-six billion, one hundred thirty-two million, five hundred seventy-two thousand, three hundred forty-two".