26778752876555 has 16 divisors (see below), whose sum is σ = 32429960085600. Its totient is φ = 21226039027200.

The previous prime is 26778752876549. The next prime is 26778752876587. The reversal of 26778752876555 is 55567825787762.

It is not a de Polignac number, because 26778752876555 - 2¹⁰ = 26778752875531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26778752876555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28532756 + ... + 29456334.

It is an arithmetic number, because the mean of its divisors is an integer number (2026872505350).

Almost surely, 2^{26778752876555} is an apocalyptic number.

26778752876555 is a deficient number, since it is larger than the sum of its proper divisors (5651207209045).

26778752876555 is a wasteful number, since it uses less digits than its factorization.

26778752876555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976894.

The product of its digits is 13829760000, while the sum is 80.

The spelling of 26778752876555 in words is "twenty-six trillion, seven hundred seventy-eight billion, seven hundred fifty-two million, eight hundred seventy-six thousand, five hundred fifty-five".