2856380775 has 24 divisors (see below), whose sum is σ = 4730329680. Its totient is φ = 1520893440.

The previous prime is 2856380767. The next prime is 2856380831. The reversal of 2856380775 is 5770836582.

It is not a de Polignac number, because 2856380775 - 2³ = 2856380767 is a prime.

It is a super-2 number, since 2×2856380775² = 16317822263579201250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14911 + ... + 77039.

It is an arithmetic number, because the mean of its divisors is an integer number (197097070).

Almost surely, 2^2856380775 is an apocalyptic number.

2856380775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2856380775 is a deficient number, since it is larger than the sum of its proper divisors (1873948905).

2856380775 is a wasteful number, since it uses less digits than its factorization.

2856380775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62755 (or 62750 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The square root of 2856380775 is about 53445.1192813712. The cubic root of 2856380775 is about 1418.8572395279.

The spelling of 2856380775 in words is "two billion, eight hundred fifty-six million, three hundred eighty thousand, seven hundred seventy-five".