22279477871 has 48 divisors (see below), whose sum is σ = 26888785920. Its totient is φ = 18071389440.

The previous prime is 22279477867. The next prime is 22279477937. The reversal of 22279477871 is 17877497222.

It is not a de Polignac number, because 22279477871 - 2² = 22279477867 is a prime.

It is a super-3 number, since 3×22279477871³ (a number of 32 digits) contains 333 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 (22279477771) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116646386 + ... + 116646576.

It is an arithmetic number, because the mean of its divisors is an integer number (560183040).

Almost surely, 2^22279477871 is an apocalyptic number.

22279477871 is a deficient number, since it is larger than the sum of its proper divisors (4609308049).

22279477871 is an equidigital number, since it uses as much as digits as its factorization.

22279477871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 383 counting only the distinct ones).

The product of its digits is 5531904, while the sum is 56.

The spelling of 22279477871 in words is "twenty-two billion, two hundred seventy-nine million, four hundred seventy-seven thousand, eight hundred seventy-one".