2167977123 has 48 divisors (see below), whose sum is σ = 3488214240. Its totient is φ = 1330183296.

The previous prime is 2167977113. The next prime is 2167977127. The reversal of 2167977123 is 3217797612.

It is not a de Polignac number, because 2167977123 - 2¹⁰ = 2167976099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2167977127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2541165 + ... + 2542017.

It is an arithmetic number, because the mean of its divisors is an integer number (72671130).

Almost surely, 2^2167977123 is an apocalyptic number.

2167977123 is a deficient number, since it is larger than the sum of its proper divisors (1320237117).

2167977123 is a wasteful number, since it uses less digits than its factorization.

2167977123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445 (or 1426 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 2167977123 is about 46561.5412438205. The cubic root of 2167977123 is about 1294.2501729982.

The spelling of 2167977123 in words is "two billion, one hundred sixty-seven million, nine hundred seventy-seven thousand, one hundred twenty-three".