255644833870 has 8 divisors (see below), whose sum is σ = 460160700984. Its totient is φ = 102257933544.

The previous prime is 255644833849. The next prime is 255644833897. The reversal of 255644833870 is 78338446552.

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

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, 12782241684 + ... + 12782241703.

It is an arithmetic number, because the mean of its divisors is an integer number (57520087623).

Almost surely, 2^255644833870 is an apocalyptic number.

255644833870 is a deficient number, since it is larger than the sum of its proper divisors (204515867114).

255644833870 is a wasteful number, since it uses less digits than its factorization.

255644833870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25564483394.

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 255644833870 in words is "two hundred fifty-five billion, six hundred forty-four million, eight hundred thirty-three thousand, eight hundred seventy".