72294293723 has 4 divisors (see below), whose sum is σ = 72295454640. Its totient is φ = 72293132808.

The previous prime is 72294293711. The next prime is 72294293759. The reversal of 72294293723 is 32739249227.

It is a happy number.

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 72294293723 - 2²² = 72290099419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72294293023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 481415 + ... + 613472.

It is an arithmetic number, because the mean of its divisors is an integer number (18073863660).

Almost surely, 2^72294293723 is an apocalyptic number.

72294293723 is a deficient number, since it is larger than the sum of its proper divisors (1160917).

72294293723 is a wasteful number, since it uses less digits than its factorization.

72294293723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160916.

The product of its digits is 2286144, while the sum is 50.

The spelling of 72294293723 in words is "seventy-two billion, two hundred ninety-four million, two hundred ninety-three thousand, seven hundred twenty-three".