26992877845 has 16 divisors (see below), whose sum is σ = 33454494720. Its totient is φ = 20886364800.

The previous prime is 26992877771. The next prime is 26992877869. The reversal of 26992877845 is 54877829962.

It is a de Polignac number, because none of the positive numbers 2^k-26992877845 is a prime.

It is a congruent number.

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, 244905 + ... + 337585.

It is an arithmetic number, because the mean of its divisors is an integer number (2090905920).

Almost surely, 2^26992877845 is an apocalyptic number.

It is an amenable number.

26992877845 is a deficient number, since it is larger than the sum of its proper divisors (6461616875).

26992877845 is a wasteful number, since it uses less digits than its factorization.

26992877845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94596.

The product of its digits is 121927680, while the sum is 67.

The spelling of 26992877845 in words is "twenty-six billion, nine hundred ninety-two million, eight hundred seventy-seven thousand, eight hundred forty-five".