722873279471616 has 2520 divisors, whose sum is σ = 2682074181749976. Its totient is φ = 187468197396480.

The previous prime is 722873279471599. The next prime is 722873279471729. The reversal of 722873279471616 is 616174972378227.

722873279471616 is a `hidden beast` number, since 7 + 2 + 2 + 8 + 73 + 2 + 79 + 471 + 6 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 2183907188571 + ... + 2183907188901.

Almost surely, 2^{722873279471616} 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 722873279471616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341037090874988).

722873279471616 is an abundant number, since it is smaller than the sum of its proper divisors (1959200902278360).

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

722873279471616 is an equidigital number, since it uses as much as digits as its factorization.

722873279471616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 429 counting only the distinct ones).

The product of its digits is 597445632, while the sum is 72.

The spelling of 722873279471616 in words is "seven hundred twenty-two trillion, eight hundred seventy-three billion, two hundred seventy-nine million, four hundred seventy-one thousand, six hundred sixteen".