722840081172 has 48 divisors (see below), whose sum is σ = 1840042455552. Its totient is φ = 219032224480.

The previous prime is 722840081167. The next prime is 722840081179. The reversal of 722840081172 is 271180048227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722840081179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2999593 + ... + 3231599.

It is an arithmetic number, because the mean of its divisors is an integer number (38334217824).

Almost surely, 2^722840081172 is an apocalyptic number.

It is an amenable number.

722840081172 is an abundant number, since it is smaller than the sum of its proper divisors (1117202374380).

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

722840081172 is a wasteful number, since it uses less digits than its factorization.

722840081172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255628 (or 255626 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The spelling of 722840081172 in words is "seven hundred twenty-two billion, eight hundred forty million, eighty-one thousand, one hundred seventy-two".