2156823076 has 12 divisors (see below), whose sum is σ = 3973095280. Its totient is φ = 1021653000.

The previous prime is 2156823073. The next prime is 2156823077. The reversal of 2156823076 is 6703286512.

It is a super-2 number, since 2×2156823076² = 9303771562332203552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2156823073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14189550 + ... + 14189701.

Almost surely, 2^2156823076 is an apocalyptic number.

It is an amenable number.

2156823076 is a deficient number, since it is larger than the sum of its proper divisors (1816272204).

2156823076 is a wasteful number, since it uses less digits than its factorization.

2156823076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28379274 (or 28379272 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 2156823076 is about 46441.6093175075. The cubic root of 2156823076 is about 1292.0267553495.

It can be divided in two parts, 21568 and 23076, that added together give a palindrome (44644).

The spelling of 2156823076 in words is "two billion, one hundred fifty-six million, eight hundred twenty-three thousand, seventy-six".