2091386926080 has 616 divisors, whose sum is σ = 7635055385952. Its totient is φ = 549313560576.

The previous prime is 2091386926067. The next prime is 2091386926141. The reversal of 2091386926080 is 806296831902.

2091386926080 is a `hidden beast` number, since 20 + 9 + 1 + 3 + 8 + 6 + 9 + 2 + 608 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 250071979 + ... + 250080341.

Almost surely, 2^{2091386926080} is an apocalyptic number.

2091386926080 is a gapful number since it is divisible by the number (20) 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 2091386926080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3817527692976).

2091386926080 is an abundant number, since it is smaller than the sum of its proper divisors (5543668459872).

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

2091386926080 is an frugal number, since it uses more digits than its factorization.

2091386926080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8473 (or 8440 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 2091386926080 in words is "two trillion, ninety-one billion, three hundred eighty-six million, nine hundred twenty-six thousand, eighty".