22978992026 has 4 divisors (see below), whose sum is σ = 34468488042. Its totient is φ = 11489496012.

The previous prime is 22978991999. The next prime is 22978992037. The reversal of 22978992026 is 62029987922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21929167225 + 1049824801 = 148085^2 + 32401^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5744748005 + ... + 5744748008.

Almost surely, 2^22978992026 is an apocalyptic number.

22978992026 is a deficient number, since it is larger than the sum of its proper divisors (11489496016).

22978992026 is a wasteful number, since it uses less digits than its factorization.

22978992026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11489496015.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 22978992026 in words is "twenty-two billion, nine hundred seventy-eight million, nine hundred ninety-two thousand, twenty-six".