26551574040 has 32 divisors (see below), whose sum is σ = 79654722480. Its totient is φ = 7080419712.

The previous prime is 26551574009. The next prime is 26551574053. The reversal of 26551574040 is 4047515562.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 26551574040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110631439 + ... + 110631678.

Almost surely, 2^26551574040 is an apocalyptic number.

26551574040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26551574040 is an abundant number, since it is smaller than the sum of its proper divisors (53103148440).

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

26551574040 is a wasteful number, since it uses less digits than its factorization.

26551574040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221263131 (or 221263127 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 26551574040 in words is "twenty-six billion, five hundred fifty-one million, five hundred seventy-four thousand, forty".