2156769276 has 48 divisors (see below), whose sum is σ = 5201570304. Its totient is φ = 695134336.

The previous prime is 2156769233. The next prime is 2156769301. The reversal of 2156769276 is 6729676512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23776 + ... + 69848.

It is an arithmetic number, because the mean of its divisors is an integer number (108366048).

Almost surely, 2^2156769276 is an apocalyptic number.

It is an amenable number.

2156769276 is an abundant number, since it is smaller than the sum of its proper divisors (3044801028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2156769276 is a wasteful number, since it uses less digits than its factorization.

2156769276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46210 (or 46208 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 2156769276 is about 46441.0300919349. The cubic root of 2156769276 is about 1292.0160124474.

The spelling of 2156769276 in words is "two billion, one hundred fifty-six million, seven hundred sixty-nine thousand, two hundred seventy-six".