88722273792 has 160 divisors (see below), whose sum is σ = 244404357120. Its totient is φ = 28571074560.

The previous prime is 88722273781. The next prime is 88722273839. The reversal of 88722273792 is 29737222788.

It is a super-2 number, since 2×88722273792² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36615493 + ... + 36617915.

It is an arithmetic number, because the mean of its divisors is an integer number (1527527232).

Almost surely, 2^88722273792 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 88722273792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122202178560).

88722273792 is an abundant number, since it is smaller than the sum of its proper divisors (155682083328).

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

88722273792 is a wasteful number, since it uses less digits than its factorization.

88722273792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244 (or 3228 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 57.

The spelling of 88722273792 in words is "eighty-eight billion, seven hundred twenty-two million, two hundred seventy-three thousand, seven hundred ninety-two".