722172862449792 has 384 divisors, whose sum is σ = 2383598208788160. Its totient is φ = 216201434591232.

The previous prime is 722172862449769. The next prime is 722172862449811. The reversal of 722172862449792 is 297944268271227.

722172862449792 is a `hidden beast` number, since 7 + 2 + 2 + 1 + 7 + 28 + 6 + 24 + 497 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is a self number, because there is not a number n which added to its sum of digits gives 722172862449792.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9174118 + ... + 39096165.

Almost surely, 2^{722172862449792} is an apocalyptic number.

722172862449792 is a gapful number since it is divisible by the number (72) 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 722172862449792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1191799104394080).

722172862449792 is an abundant number, since it is smaller than the sum of its proper divisors (1661425346338368).

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

722172862449792 is a wasteful number, since it uses less digits than its factorization.

722172862449792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48270362 (or 48270338 counting only the distinct ones).

The product of its digits is 682795008, while the sum is 72.

The spelling of 722172862449792 in words is "seven hundred twenty-two trillion, one hundred seventy-two billion, eight hundred sixty-two million, four hundred forty-nine thousand, seven hundred ninety-two".