2731772723 has 4 divisors (see below), whose sum is σ = 2798401368. Its totient is φ = 2665144080.

The previous prime is 2731772717. The next prime is 2731772753. The reversal of 2731772723 is 3272771372.

2731772723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2731772723 - 2²² = 2727578419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 66628603 = 2731772723 / (2 + 7 + 3 + 1 + 7 + 7 + 2 + 7 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2731772713) 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, 33314261 + ... + 33314342.

It is an arithmetic number, because the mean of its divisors is an integer number (699600342).

Almost surely, 2^2731772723 is an apocalyptic number.

2731772723 is a deficient number, since it is larger than the sum of its proper divisors (66628645).

2731772723 is an equidigital number, since it uses as much as digits as its factorization.

2731772723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66628644.

The product of its digits is 172872, while the sum is 41.

The square root of 2731772723 is about 52266.3632080902. The cubic root of 2731772723 is about 1397.9174347457.

The spelling of 2731772723 in words is "two billion, seven hundred thirty-one million, seven hundred seventy-two thousand, seven hundred twenty-three".