263222943261 has 8 divisors (see below), whose sum is σ = 369435709920. Its totient is φ = 166246069392.

The previous prime is 263222943229. The next prime is 263222943287. The reversal of 263222943261 is 162349222362.

It is a happy number.

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

It is not a de Polignac number, because 263222943261 - 2⁵ = 263222943229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263222943211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2308973130 + ... + 2308973243.

It is an arithmetic number, because the mean of its divisors is an integer number (46179463740).

Almost surely, 2^263222943261 is an apocalyptic number.

It is an amenable number.

263222943261 is a deficient number, since it is larger than the sum of its proper divisors (106212766659).

263222943261 is a wasteful number, since it uses less digits than its factorization.

263222943261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617946395.

The product of its digits is 373248, while the sum is 42.

The spelling of 263222943261 in words is "two hundred sixty-three billion, two hundred twenty-two million, nine hundred forty-three thousand, two hundred sixty-one".