272661651291 has 4 divisors (see below), whose sum is σ = 363548868392. Its totient is φ = 181774434192.

The previous prime is 272661651289. The next prime is 272661651293. The reversal of 272661651291 is 192156166272.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (272661651289) and next prime (272661651293).

It is not a de Polignac number, because 272661651291 - 2¹ = 272661651289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 272661651291.

It is not an unprimeable number, because it can be changed into a prime (272661651293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45443608546 + ... + 45443608551.

It is an arithmetic number, because the mean of its divisors is an integer number (90887217098).

Almost surely, 2^272661651291 is an apocalyptic number.

272661651291 is a deficient number, since it is larger than the sum of its proper divisors (90887217101).

272661651291 is an equidigital number, since it uses as much as digits as its factorization.

272661651291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90887217100.

The product of its digits is 544320, while the sum is 48.

The spelling of 272661651291 in words is "two hundred seventy-two billion, six hundred sixty-one million, six hundred fifty-one thousand, two hundred ninety-one".