2661723592 has 32 divisors (see below), whose sum is σ = 5764698720. Its totient is φ = 1138704640.

The previous prime is 2661723587. The next prime is 2661723601. The reversal of 2661723592 is 2953271662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888118 + ... + 891109.

It is an arithmetic number, because the mean of its divisors is an integer number (180146835).

Almost surely, 2^2661723592 is an apocalyptic number.

2661723592 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2661723592 is an abundant number, since it is smaller than the sum of its proper divisors (3102975128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2661723592 is a wasteful number, since it uses less digits than its factorization.

2661723592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779261 (or 1779257 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 2661723592 is about 51591.8946347195. The cubic root of 2661723592 is about 1385.8651845935.

The spelling of 2661723592 in words is "two billion, six hundred sixty-one million, seven hundred twenty-three thousand, five hundred ninety-two".