272740261691 has 12 divisors (see below), whose sum is σ = 277351401600. Its totient is φ = 268204595040.

The previous prime is 272740261663. The next prime is 272740261693. The reversal of 272740261691 is 196162047272.

It is not a de Polignac number, because 272740261691 - 2¹⁸ = 272739999547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272740261693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24995945 + ... + 25006853.

It is an arithmetic number, because the mean of its divisors is an integer number (23112616800).

Almost surely, 2^272740261691 is an apocalyptic number.

272740261691 is a deficient number, since it is larger than the sum of its proper divisors (4611139909).

272740261691 is an equidigital number, since it uses as much as digits as its factorization.

272740261691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17750 (or 17689 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 272740261691 in words is "two hundred seventy-two billion, seven hundred forty million, two hundred sixty-one thousand, six hundred ninety-one".