722063536577621 has 16 divisors (see below), whose sum is σ = 844451285462400. Its totient is φ = 604486267293888.

The previous prime is 722063536577497. The next prime is 722063536577683. The reversal of 722063536577621 is 126775635360227.

It is not a de Polignac number, because 722063536577621 - 2²² = 722063532383317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722063536579621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57887186 + ... + 69246323.

It is an arithmetic number, because the mean of its divisors is an integer number (52778205341400).

Almost surely, 2^{722063536577621} is an apocalyptic number.

It is an amenable number.

722063536577621 is a deficient number, since it is larger than the sum of its proper divisors (122387748884779).

722063536577621 is a wasteful number, since it uses less digits than its factorization.

722063536577621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127152428.

The product of its (nonzero) digits is 133358400, while the sum is 62.

The spelling of 722063536577621 in words is "seven hundred twenty-two trillion, sixty-three billion, five hundred thirty-six million, five hundred seventy-seven thousand, six hundred twenty-one".