1256875701258 has 16 divisors (see below), whose sum is σ = 2525664918816. Its totient is φ = 416972981040.

The previous prime is 1256875701241. The next prime is 1256875701371. The reversal of 1256875701258 is 8521075786521.

It is a junction number, because it is equal to n+sod(n) for n = 1256875701198 and 1256875701207.

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, 496395141 + ... + 496397672.

It is an arithmetic number, because the mean of its divisors is an integer number (157854057426).

Almost surely, 2^{1256875701258} is an apocalyptic number.

1256875701258 is an abundant number, since it is smaller than the sum of its proper divisors (1268789217558).

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

1256875701258 is a wasteful number, since it uses less digits than its factorization.

1256875701258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992793029.

The product of its (nonzero) digits is 9408000, while the sum is 57.

The spelling of 1256875701258 in words is "one trillion, two hundred fifty-six billion, eight hundred seventy-five million, seven hundred one thousand, two hundred fifty-eight".