2197966727420 has 24 divisors (see below), whose sum is σ = 4635886164000. Its totient is φ = 875347445952.

The previous prime is 2197966727389. The next prime is 2197966727423. The reversal of 2197966727420 is 247276697912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197966727423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239948120 + ... + 239957279.

It is an arithmetic number, because the mean of its divisors is an integer number (193161923500).

Almost surely, 2^{2197966727420} is an apocalyptic number.

2197966727420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2197966727420 is an abundant number, since it is smaller than the sum of its proper divisors (2437919436580).

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

2197966727420 is a wasteful number, since it uses less digits than its factorization.

2197966727420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479905637 (or 479905635 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 62.

The spelling of 2197966727420 in words is "two trillion, one hundred ninety-seven billion, nine hundred sixty-six million, seven hundred twenty-seven thousand, four hundred twenty".