26551574047 has 4 divisors (see below), whose sum is σ = 27199173456. Its totient is φ = 25903974640.

The previous prime is 26551574009. The next prime is 26551574053. The reversal of 26551574047 is 74047515562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74047515562 = 2 ⋅37023757781.

It is a cyclic number.

It is not a de Polignac number, because 26551574047 - 2²⁷ = 26417356319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26551573988 and 26551574006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26551574057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323799643 + ... + 323799724.

It is an arithmetic number, because the mean of its divisors is an integer number (6799793364).

Almost surely, 2^26551574047 is an apocalyptic number.

26551574047 is a deficient number, since it is larger than the sum of its proper divisors (647599409).

26551574047 is an equidigital number, since it uses as much as digits as its factorization.

26551574047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647599408.

The product of its (nonzero) digits is 1176000, while the sum is 46.

The spelling of 26551574047 in words is "twenty-six billion, five hundred fifty-one million, five hundred seventy-four thousand, forty-seven".