256724034076734 has 24 divisors (see below), whose sum is σ = 597276324179208. Its totient is φ = 73349724021840.

The previous prime is 256724034076687. The next prime is 256724034076747. The reversal of 256724034076734 is 437670430427652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436605499837 + ... + 436605500424.

It is an arithmetic number, because the mean of its divisors is an integer number (24886513507467).

Almost surely, 2^{256724034076734} is an apocalyptic number.

256724034076734 is an abundant number, since it is smaller than the sum of its proper divisors (340552290102474).

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

256724034076734 is a wasteful number, since it uses less digits than its factorization.

256724034076734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873211000280 (or 873211000273 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 60.

The spelling of 256724034076734 in words is "two hundred fifty-six trillion, seven hundred twenty-four billion, thirty-four million, seventy-six thousand, seven hundred thirty-four".