722774774400 has 2304 divisors, whose sum is σ = 3176732390400. Its totient is φ = 143061811200.

The previous prime is 722774774399. The next prime is 722774774437. The reversal of 722774774400 is 4477477227.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 10179926365 + ... + 10179926435.

It is an arithmetic number, because the mean of its divisors is an integer number (1378790100).

Almost surely, 2^722774774400 is an apocalyptic number.

722774774400 is a gapful number since it is divisible by the number (70) 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 722774774400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1588366195200).

722774774400 is an abundant number, since it is smaller than the sum of its proper divisors (2453957616000).

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

722774774400 is a wasteful number, since it uses less digits than its factorization.

722774774400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 4302592, while the sum is 51.

The spelling of 722774774400 in words is "seven hundred twenty-two billion, seven hundred seventy-four million, seven hundred seventy-four thousand, four hundred".