72346243523 has 4 divisors (see below), whose sum is σ = 74301547440. Its totient is φ = 70390939608.

The previous prime is 72346243517. The next prime is 72346243559. The reversal of 72346243523 is 32534264327.

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 72346243523 - 2⁴ = 72346243507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72346743523) 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, 977651903 + ... + 977651976.

It is an arithmetic number, because the mean of its divisors is an integer number (18575386860).

Almost surely, 2^72346243523 is an apocalyptic number.

72346243523 is a deficient number, since it is larger than the sum of its proper divisors (1955303917).

72346243523 is a wasteful number, since it uses less digits than its factorization.

72346243523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955303916.

The product of its digits is 725760, while the sum is 41.

The spelling of 72346243523 in words is "seventy-two billion, three hundred forty-six million, two hundred forty-three thousand, five hundred twenty-three".