220273762891 has 16 divisors (see below), whose sum is σ = 278433367744. Its totient is φ = 169572196224.

The previous prime is 220273762889. The next prime is 220273762903. The reversal of 220273762891 is 198267372022.

220273762891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 220273762891 - 2¹ = 220273762889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220273763891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32707320 + ... + 32714053.

It is an arithmetic number, because the mean of its divisors is an integer number (17402085484).

Almost surely, 2^220273762891 is an apocalyptic number.

220273762891 is a deficient number, since it is larger than the sum of its proper divisors (58159604853).

220273762891 is a wasteful number, since it uses less digits than its factorization.

220273762891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65421430.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 220273762891 in words is "two hundred twenty billion, two hundred seventy-three million, seven hundred sixty-two thousand, eight hundred ninety-one".