255787260457578 has 16 divisors (see below), whose sum is σ = 533816891390016. Its totient is φ = 81555358406720.

The previous prime is 255787260457567. The next prime is 255787260457669. The reversal of 255787260457578 is 875754062787552.

It is a super-2 number, since 2×255787260457578² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926765436303 + ... + 926765436578.

It is an arithmetic number, because the mean of its divisors is an integer number (33363555711876).

Almost surely, 2^{255787260457578} is an apocalyptic number.

255787260457578 is an abundant number, since it is smaller than the sum of its proper divisors (278029630932438).

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

255787260457578 is a wasteful number, since it uses less digits than its factorization.

255787260457578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853530872909.

The product of its (nonzero) digits is 9219840000, while the sum is 78.

The spelling of 255787260457578 in words is "two hundred fifty-five trillion, seven hundred eighty-seven billion, two hundred sixty million, four hundred fifty-seven thousand, five hundred seventy-eight".