722367138837 has 4 divisors (see below), whose sum is σ = 963156185120. Its totient is φ = 481578092556.

The previous prime is 722367138833. The next prime is 722367138877. The reversal of 722367138837 is 738831763227.

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, and also an emirpimes, since its reverse is a distinct semiprime: 738831763227 = 3 ⋅246277254409.

It is not a de Polignac number, because 722367138837 - 2² = 722367138833 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722367138833) 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, 120394523137 + ... + 120394523142.

It is an arithmetic number, because the mean of its divisors is an integer number (240789046280).

Almost surely, 2^722367138837 is an apocalyptic number.

It is an amenable number.

722367138837 is a deficient number, since it is larger than the sum of its proper divisors (240789046283).

722367138837 is a wasteful number, since it uses less digits than its factorization.

722367138837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240789046282.

The product of its digits is 14224896, while the sum is 57.

The spelling of 722367138837 in words is "seven hundred twenty-two billion, three hundred sixty-seven million, one hundred thirty-eight thousand, eight hundred thirty-seven".