2170138676 has 6 divisors (see below), whose sum is σ = 3797742690. Its totient is φ = 1085069336.

The previous prime is 2170138669. The next prime is 2170138699. The reversal of 2170138676 is 6768310712.

It can be written as a sum of positive squares in only one way, i.e., 1888771600 + 281367076 = 43460^2 + 16774^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271267331 + ... + 271267338.

It is an arithmetic number, because the mean of its divisors is an integer number (632957115).

Almost surely, 2^2170138676 is an apocalyptic number.

It is an amenable number.

2170138676 is a deficient number, since it is larger than the sum of its proper divisors (1627604014).

2170138676 is a wasteful number, since it uses less digits than its factorization.

2170138676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542534673 (or 542534671 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 2170138676 is about 46584.7472462822. The cubic root of 2170138676 is about 1294.6801684784.

The spelling of 2170138676 in words is "two billion, one hundred seventy million, one hundred thirty-eight thousand, six hundred seventy-six".