26368476634 has 4 divisors (see below), whose sum is σ = 39552714954. Its totient is φ = 13184238316.

The previous prime is 26368476601. The next prime is 26368476677. The reversal of 26368476634 is 43667486362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43667486362 = 2 ⋅21833743181.

It can be written as a sum of positive squares in only one way, i.e., 18464733225 + 7903743409 = 135885^2 + 88903^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6592119157 + ... + 6592119160.

Almost surely, 2^26368476634 is an apocalyptic number.

26368476634 is a deficient number, since it is larger than the sum of its proper divisors (13184238320).

26368476634 is a wasteful number, since it uses less digits than its factorization.

26368476634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13184238319.

The product of its digits is 20901888, while the sum is 55.

The spelling of 26368476634 in words is "twenty-six billion, three hundred sixty-eight million, four hundred seventy-six thousand, six hundred thirty-four".