722036638208 has 150 divisors (see below), whose sum is σ = 1565833085421. Its totient is φ = 332552544256.

The previous prime is 722036638187. The next prime is 722036638223. The reversal of 722036638208 is 802836630227.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 660825919744 + 61210718464 = 812912^2 + 247408^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=600848.

It is a super-3 number, since 3×722036638208³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 15362481641 + ... + 15362481687.

Almost surely, 2^722036638208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722036638208

722036638208 is an abundant number, since it is smaller than the sum of its proper divisors (843796447213).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722036638208 is an frugal number, since it uses more digits than its factorization.

722036638208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 722036638208 in words is "seven hundred twenty-two billion, thirty-six million, six hundred thirty-eight thousand, two hundred eight".