722985671460 has 48 divisors (see below), whose sum is σ = 2180079873216. Its totient is φ = 177965703552.

The previous prime is 722985671437. The next prime is 722985671491. The reversal of 722985671460 is 64176589227.

It is a happy number.

It is a super-2 number, since 2×722985671460² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 722985671460.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463451574 + ... + 463453133.

It is an arithmetic number, because the mean of its divisors is an integer number (45418330692).

Almost surely, 2^722985671460 is an apocalyptic number.

It is an amenable number.

722985671460 is an abundant number, since it is smaller than the sum of its proper divisors (1457094201756).

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

722985671460 is a wasteful number, since it uses less digits than its factorization.

722985671460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926904732 (or 926904730 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 722985671460 in words is "seven hundred twenty-two billion, nine hundred eighty-five million, six hundred seventy-one thousand, four hundred sixty".