263676422261 has 16 divisors (see below), whose sum is σ = 302145780480. Its totient is φ = 225407629440.

The previous prime is 263676422213. The next prime is 263676422299. The reversal of 263676422261 is 162224676362.

It is a de Polignac number, because none of the positive numbers 2^k-263676422261 is a prime.

It is a super-2 number, since 2×263676422261² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263676422201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22001891 + ... + 22013871.

It is an arithmetic number, because the mean of its divisors is an integer number (18884111280).

Almost surely, 2^263676422261 is an apocalyptic number.

It is an amenable number.

263676422261 is a deficient number, since it is larger than the sum of its proper divisors (38469358219).

263676422261 is a wasteful number, since it uses less digits than its factorization.

263676422261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20084.

The product of its digits is 1741824, while the sum is 47.

The spelling of 263676422261 in words is "two hundred sixty-three billion, six hundred seventy-six million, four hundred twenty-two thousand, two hundred sixty-one".