22778048231 has 8 divisors (see below), whose sum is σ = 23578717680. Its totient is φ = 21978393472.

The previous prime is 22778048203. The next prime is 22778048233. The reversal of 22778048231 is 13284087722.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22778048231 is a prime.

It is a super-2 number, since 2×22778048231² (a number of 22 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 (22778048233) 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, 207845 + ... + 297918.

It is an arithmetic number, because the mean of its divisors is an integer number (2947339710).

Almost surely, 2^22778048231 is an apocalyptic number.

22778048231 is a deficient number, since it is larger than the sum of its proper divisors (800669449).

22778048231 is a wasteful number, since it uses less digits than its factorization.

22778048231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507345.

The product of its (nonzero) digits is 301056, while the sum is 44.

It can be divided in two parts, 2277 and 8048231, that added together give a palindrome (8050508).

The spelling of 22778048231 in words is "twenty-two billion, seven hundred seventy-eight million, forty-eight thousand, two hundred thirty-one".