722632015872 has 672 divisors, whose sum is σ = 2359484129700. Its totient is φ = 221106143232.

The previous prime is 722632015811. The next prime is 722632015883. The reversal of 722632015872 is 278510236227.

722632015872 is a `hidden beast` number, since 7 + 2 + 2 + 63 + 2 + 0 + 1 + 587 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 4037050279 + ... + 4037050457.

Almost surely, 2^722632015872 is an apocalyptic number.

722632015872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722632015872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179742064850).

722632015872 is an abundant number, since it is smaller than the sum of its proper divisors (1636852113828).

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

722632015872 is an frugal number, since it uses more digits than its factorization.

722632015872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 722632015872 in words is "seven hundred twenty-two billion, six hundred thirty-two million, fifteen thousand, eight hundred seventy-two".