722632297680 has 240 divisors, whose sum is σ = 2572834328064. Its totient is φ = 181445391360.

The previous prime is 722632297619. The next prime is 722632297687. The reversal of 722632297680 is 86792236227.

722632297680 is a `hidden beast` number, since 7 + 226 + 322 + 97 + 6 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×722632297680² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722632297687) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 388327 + ... + 1263353.

Almost surely, 2^722632297680 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 722632297680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1286417164032).

722632297680 is an abundant number, since it is smaller than the sum of its proper divisors (1850202030384).

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

722632297680 is a wasteful number, since it uses less digits than its factorization.

722632297680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875114 (or 875105 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 722632297680 in words is "seven hundred twenty-two billion, six hundred thirty-two million, two hundred ninety-seven thousand, six hundred eighty".