2638972167 has 16 divisors (see below), whose sum is σ = 3826088448. Its totient is φ = 1608213600.

The previous prime is 2638972163. The next prime is 2638972181. The reversal of 2638972167 is 7612798362.

It is not a de Polignac number, because 2638972167 - 2² = 2638972163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638972163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324459 + ... + 332492.

It is an arithmetic number, because the mean of its divisors is an integer number (239130528).

Almost surely, 2^2638972167 is an apocalyptic number.

2638972167 is a deficient number, since it is larger than the sum of its proper divisors (1187116281).

2638972167 is a wasteful number, since it uses less digits than its factorization.

2638972167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657070.

The product of its digits is 1524096, while the sum is 51.

The square root of 2638972167 is about 51370.9272546253. The cubic root of 2638972167 is about 1381.9052600676.

The spelling of 2638972167 in words is "two billion, six hundred thirty-eight million, nine hundred seventy-two thousand, one hundred sixty-seven".