272336815881 has 27 divisors (see below), whose sum is σ = 425994547797. Its totient is φ = 167579362080.

The previous prime is 272336815831. The next prime is 272336815901. The reversal of 272336815881 is 188518633272.

The square root of 272336815881 is 521859.

It is a perfect power (a square), and thus also a powerful number.

272336815881 is a `hidden beast` number, since 2 + 7 + 23 + 36 + 8 + 1 + 588 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 145469774025 + 126867041856 = 381405^2 + 356184^2 .

It is not a de Polignac number, because 272336815881 - 2¹⁹ = 272336291593 is a prime.

It is a super-2 number, since 2×272336815881² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (272336815831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20345811 + ... + 20359191.

Almost surely, 2^272336815881 is an apocalyptic number.

272336815881 is the 521859-th square number.

272336815881 is the 260930-th centered octagonal number.

It is an amenable number.

272336815881 is a deficient number, since it is larger than the sum of its proper divisors (153657731916).

272336815881 is an frugal number, since it uses more digits than its factorization.

272336815881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26794 (or 13397 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 272336815881 in words is "two hundred seventy-two billion, three hundred thirty-six million, eight hundred fifteen thousand, eight hundred eighty-one".