23000722278 has 16 divisors (see below), whose sum is σ = 46082297520. Its totient is φ = 7653431936.

The previous prime is 23000722267. The next prime is 23000722301. The reversal of 23000722278 is 87222700032.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3365175 + ... + 3372002.

It is an arithmetic number, because the mean of its divisors is an integer number (2880143595).

Almost surely, 2^23000722278 is an apocalyptic number.

23000722278 is an abundant number, since it is smaller than the sum of its proper divisors (23081575242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23000722278 is a wasteful number, since it uses less digits than its factorization.

23000722278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6737751.

The product of its (nonzero) digits is 18816, while the sum is 33.

The spelling of 23000722278 in words is "twenty-three billion, seven hundred twenty-two thousand, two hundred seventy-eight".