2156278082 has 32 divisors (see below), whose sum is σ = 3842197632. Its totient is φ = 888292224.

The previous prime is 2156278057. The next prime is 2156278097. The reversal of 2156278082 is 2808726512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17918 + ... + 68070.

It is an arithmetic number, because the mean of its divisors is an integer number (120068676).

Almost surely, 2^2156278082 is an apocalyptic number.

2156278082 is a deficient number, since it is larger than the sum of its proper divisors (1685919550).

2156278082 is a wasteful number, since it uses less digits than its factorization.

2156278082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50282.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 2156278082 is about 46435.7414283437. The cubic root of 2156278082 is about 1291.9179214888.

The spelling of 2156278082 in words is "two billion, one hundred fifty-six million, two hundred seventy-eight thousand, eighty-two".