2623220223261 has 8 divisors (see below), whose sum is σ = 3815593052064. Its totient is φ = 1589830438320.

The previous prime is 2623220223181. The next prime is 2623220223409. The reversal of 2623220223261 is 1623220223262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2623220223261 - 2²² = 2623216028957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 79491521917 = 2623220223261 / (2 + 6 + 2 + 3 + 2 + 2 + 0 + 2 + 2 + 3 + 2 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2623220223061) 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 7 ways as a sum of consecutive naturals, for example, 39745760926 + ... + 39745760991.

It is an arithmetic number, because the mean of its divisors is an integer number (476949131508).

Almost surely, 2^{2623220223261} is an apocalyptic number.

It is an amenable number.

2623220223261 is a deficient number, since it is larger than the sum of its proper divisors (1192372828803).

2623220223261 is a wasteful number, since it uses less digits than its factorization.

2623220223261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79491521931.

The product of its (nonzero) digits is 41472, while the sum is 33.

Subtracting from 2623220223261 its reverse (1623220223262), we obtain a palindrome (999999999999).

The spelling of 2623220223261 in words is "two trillion, six hundred twenty-three billion, two hundred twenty million, two hundred twenty-three thousand, two hundred sixty-one".