2045871723 has 16 divisors (see below), whose sum is σ = 3118300416. Its totient is φ = 1168776480.

The previous prime is 2045871703. The next prime is 2045871727. The reversal of 2045871723 is 3271785402.

It is not a de Polignac number, because 2045871723 - 2⁹ = 2045871211 is a prime.

It is a super-2 number, since 2×2045871723² = 8371182213941977458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2045871727) 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, 95740 + ... + 115142.

It is an arithmetic number, because the mean of its divisors is an integer number (194893776).

Almost surely, 2^2045871723 is an apocalyptic number.

2045871723 is a deficient number, since it is larger than the sum of its proper divisors (1072428693).

2045871723 is a wasteful number, since it uses less digits than its factorization.

2045871723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24434.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 2045871723 is about 45231.3135228240. The cubic root of 2045871723 is about 1269.4807894769.

The spelling of 2045871723 in words is "two billion, forty-five million, eight hundred seventy-one thousand, seven hundred twenty-three".