722864379437 has 4 divisors (see below), whose sum is σ = 722866548960. Its totient is φ = 722862209916.

The previous prime is 722864379353. The next prime is 722864379467. The reversal of 722864379437 is 734973468227.

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 722864379437 - 2²⁸ = 722595943981 is a prime.

It is a super-2 number, since 2×722864379437² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722864379437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722864379467) 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, 468137 + ... + 1290302.

It is an arithmetic number, because the mean of its divisors is an integer number (180716637240).

Almost surely, 2^722864379437 is an apocalyptic number.

It is an amenable number.

722864379437 is a deficient number, since it is larger than the sum of its proper divisors (2169523).

722864379437 is a wasteful number, since it uses less digits than its factorization.

722864379437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169522.

The product of its digits is 85349376, while the sum is 62.

The spelling of 722864379437 in words is "seven hundred twenty-two billion, eight hundred sixty-four million, three hundred seventy-nine thousand, four hundred thirty-seven".