2691037392420 has 576 divisors, whose sum is σ = 8662358605824. Its totient is φ = 622928517120.

The previous prime is 2691037392413. The next prime is 2691037392431. The reversal of 2691037392420 is 242937301962.

2691037392420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2691037392420.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3554870682 + ... + 3554871438.

It is an arithmetic number, because the mean of its divisors is an integer number (15038817024).

Almost surely, 2^{2691037392420} is an apocalyptic number.

2691037392420 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 2691037392420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4331179302912).

2691037392420 is an abundant number, since it is smaller than the sum of its proper divisors (5971321213404).

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

2691037392420 is a wasteful number, since it uses less digits than its factorization.

2691037392420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 2691037392420 in words is "two trillion, six hundred ninety-one billion, thirty-seven million, three hundred ninety-two thousand, four hundred twenty".