26454371906 has 4 divisors (see below), whose sum is σ = 39681557862. Its totient is φ = 13227185952.

The previous prime is 26454371899. The next prime is 26454371921. The reversal of 26454371906 is 60917345462.

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., 15635251681 + 10819120225 = 125041^2 + 104015^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6613592975 + ... + 6613592978.

Almost surely, 2^26454371906 is an apocalyptic number.

26454371906 is a deficient number, since it is larger than the sum of its proper divisors (13227185956).

26454371906 is a wasteful number, since it uses less digits than its factorization.

26454371906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13227185955.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 26454371906 in words is "twenty-six billion, four hundred fifty-four million, three hundred seventy-one thousand, nine hundred six".