26109872555 has 32 divisors (see below), whose sum is σ = 33985224000. Its totient is φ = 19142641152.

The previous prime is 26109872539. The next prime is 26109872563. The reversal of 26109872555 is 55527890162.

It is a cyclic number.

It is not a de Polignac number, because 26109872555 - 2⁴ = 26109872539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5737421 + ... + 5741969.

It is an arithmetic number, because the mean of its divisors is an integer number (1062038250).

Almost surely, 2^26109872555 is an apocalyptic number.

26109872555 is a deficient number, since it is larger than the sum of its proper divisors (7875351445).

26109872555 is a wasteful number, since it uses less digits than its factorization.

26109872555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183.

The product of its (nonzero) digits is 1512000, while the sum is 50.

The spelling of 26109872555 in words is "twenty-six billion, one hundred nine million, eight hundred seventy-two thousand, five hundred fifty-five".