2291747991060 has 96 divisors (see below), whose sum is σ = 7003877497344. Its totient is φ = 555287248000.

The previous prime is 2291747991031. The next prime is 2291747991073. The reversal of 2291747991060 is 601997471922.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375355 + ... + 2173565.

It is an arithmetic number, because the mean of its divisors is an integer number (72957057264).

Almost surely, 2^{2291747991060} is an apocalyptic number.

2291747991060 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 2291747991060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3501938748672).

2291747991060 is an abundant number, since it is smaller than the sum of its proper divisors (4712129506284).

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

2291747991060 is a wasteful number, since it uses less digits than its factorization.

2291747991060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800165 (or 1800163 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 57.

The spelling of 2291747991060 in words is "two trillion, two hundred ninety-one billion, seven hundred forty-seven million, nine hundred ninety-one thousand, sixty".