2156673796 has 6 divisors (see below), whose sum is σ = 3774179150. Its totient is φ = 1078336896.

The previous prime is 2156673773. The next prime is 2156673811. The reversal of 2156673796 is 6973766512.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2156673600 + 196 = 46440^2 + 14^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269584221 + ... + 269584228.

Almost surely, 2^2156673796 is an apocalyptic number.

It is an amenable number.

2156673796 is a deficient number, since it is larger than the sum of its proper divisors (1617505354).

2156673796 is a wasteful number, since it uses less digits than its factorization.

2156673796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539168453 (or 539168451 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 52.

The square root of 2156673796 is about 46440.0021102497. The cubic root of 2156673796 is about 1291.9969463516.

The spelling of 2156673796 in words is "two billion, one hundred fifty-six million, six hundred seventy-three thousand, seven hundred ninety-six".