723325580381 has 4 divisors (see below), whose sum is σ = 723789549600. Its totient is φ = 722861611164.

The previous prime is 723325580377. The next prime is 723325580389. The reversal of 723325580381 is 183085523327.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 723325580381 - 2² = 723325580377 is a prime.

It is a super-2 number, since 2×723325580381² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723325580389) 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, 231982271 + ... + 231985388.

It is an arithmetic number, because the mean of its divisors is an integer number (180947387400).

Almost surely, 2^723325580381 is an apocalyptic number.

It is an amenable number.

723325580381 is a deficient number, since it is larger than the sum of its proper divisors (463969219).

723325580381 is a wasteful number, since it uses less digits than its factorization.

723325580381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463969218.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 723325580381 in words is "seven hundred twenty-three billion, three hundred twenty-five million, five hundred eighty thousand, three hundred eighty-one".