90722751683872 has 96 divisors (see below), whose sum is σ = 222743308523904. Its totient is φ = 35336972544000.

The previous prime is 90722751683833. The next prime is 90722751683923. The reversal of 90722751683872 is 27838615722709.

It is a super-2 number, since 2×90722751683872² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90722751683798 and 90722751683807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4145028 + ... + 14093500.

It is an arithmetic number, because the mean of its divisors is an integer number (2320242797124).

Almost surely, 2^{90722751683872} 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 90722751683872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111371654261952).

90722751683872 is an abundant number, since it is smaller than the sum of its proper divisors (132020556840032).

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

90722751683872 is a wasteful number, since it uses less digits than its factorization.

90722751683872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9952202 (or 9952194 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 67.

The spelling of 90722751683872 in words is "ninety trillion, seven hundred twenty-two billion, seven hundred fifty-one million, six hundred eighty-three thousand, eight hundred seventy-two".