109591388326480 has 20 divisors (see below), whose sum is σ = 254799977859252. Its totient is φ = 43836555330560.

The previous prime is 109591388326463. The next prime is 109591388326499. The reversal of 109591388326480 is 84623883195901.

It can be written as a sum of positive squares in 2 ways, for example, as 55104432711696 + 54486955614784 = 7423236^2 + 7381528^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684946176961 + ... + 684946177120.

Almost surely, 2^{109591388326480} is an apocalyptic number.

109591388326480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109591388326480 is an abundant number, since it is smaller than the sum of its proper divisors (145208589532772).

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

109591388326480 is a wasteful number, since it uses less digits than its factorization.

109591388326480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369892354094 (or 1369892354088 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 67.

The spelling of 109591388326480 in words is "one hundred nine trillion, five hundred ninety-one billion, three hundred eighty-eight million, three hundred twenty-six thousand, four hundred eighty".