83726668880 has 40 divisors (see below), whose sum is σ = 194678814312. Its totient is φ = 33488205824.

The previous prime is 83726668871. The next prime is 83726668913. The reversal of 83726668880 is 8886662738.

It can be written as a sum of positive squares in 4 ways, for example, as 1373740096 + 82352928784 = 37064^2 + 286972^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382924 + ... + 1442196.

Almost surely, 2^83726668880 is an apocalyptic number.

83726668880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83726668880 is an abundant number, since it is smaller than the sum of its proper divisors (110952145432).

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

83726668880 is a wasteful number, since it uses less digits than its factorization.

83726668880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76943 (or 76937 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 62.

The spelling of 83726668880 in words is "eighty-three billion, seven hundred twenty-six million, six hundred sixty-eight thousand, eight hundred eighty".