722251118690 has 8 divisors (see below), whose sum is σ = 1300052013660. Its totient is φ = 288900447472.

The previous prime is 722251118599. The next prime is 722251118707. The reversal of 722251118690 is 96811152227.

It can be written as a sum of positive squares in 2 ways, for example, as 719903037841 + 2348080849 = 848471^2 + 48457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×722251118690² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36112555925 + ... + 36112555944.

Almost surely, 2^722251118690 is an apocalyptic number.

722251118690 is a deficient number, since it is larger than the sum of its proper divisors (577800894970).

722251118690 is a wasteful number, since it uses less digits than its factorization.

722251118690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72225111876.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 722251118690 in words is "seven hundred twenty-two billion, two hundred fifty-one million, one hundred eighteen thousand, six hundred ninety".