8256870455 has 8 divisors (see below), whose sum is σ = 9914419872. Its totient is φ = 6601379488.

The previous prime is 8256870439. The next prime is 8256870467. The reversal of 8256870455 is 5540786528.

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

It is a cyclic number.

It is not a de Polignac number, because 8256870455 - 2⁴ = 8256870439 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 505772 + ... + 521841.

It is an arithmetic number, because the mean of its divisors is an integer number (1239302484).

Almost surely, 2^8256870455 is an apocalyptic number.

8256870455 is a deficient number, since it is larger than the sum of its proper divisors (1657549417).

8256870455 is a wasteful number, since it uses less digits than its factorization.

8256870455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029225.

The product of its (nonzero) digits is 2688000, while the sum is 50.

The square root of 8256870455 is about 90867.3233621416. The cubic root of 8256870455 is about 2021.1807669540.

The spelling of 8256870455 in words is "eight billion, two hundred fifty-six million, eight hundred seventy thousand, four hundred fifty-five".