2664372173 has 4 divisors (see below), whose sum is σ = 2690239968. Its totient is φ = 2638504380.

The previous prime is 2664372131. The next prime is 2664372211. The reversal of 2664372173 is 3712734662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2664372173 - 2⁸ = 2664371917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2664372173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664372673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12933743 + ... + 12933948.

It is an arithmetic number, because the mean of its divisors is an integer number (672559992).

Almost surely, 2^2664372173 is an apocalyptic number.

It is an amenable number.

2664372173 is a deficient number, since it is larger than the sum of its proper divisors (25867795).

2664372173 is a wasteful number, since it uses less digits than its factorization.

2664372173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25867794.

The product of its digits is 254016, while the sum is 41.

The square root of 2664372173 is about 51617.5568290480. The cubic root of 2664372173 is about 1386.3247063104.

The spelling of 2664372173 in words is "two billion, six hundred sixty-four million, three hundred seventy-two thousand, one hundred seventy-three".