723871045291 has 8 divisors (see below), whose sum is σ = 766471004784. Its totient is φ = 681273231360.

The previous prime is 723871045237. The next prime is 723871045319. The reversal of 723871045291 is 192540178327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 723871045291 - 2¹¹ = 723871043243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723871045591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186036 + ... + 1217518.

It is an arithmetic number, because the mean of its divisors is an integer number (95808875598).

Almost surely, 2^723871045291 is an apocalyptic number.

723871045291 is a deficient number, since it is larger than the sum of its proper divisors (42599959493).

723871045291 is a wasteful number, since it uses less digits than its factorization.

723871045291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072781.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 723871045291 in words is "seven hundred twenty-three billion, eight hundred seventy-one million, forty-five thousand, two hundred ninety-one".