26977551705 has 24 divisors (see below), whose sum is σ = 50358097608. Its totient is φ = 13281255936.

The previous prime is 26977551697. The next prime is 26977551721. The reversal of 26977551705 is 50715577962.

It can be written as a sum of positive squares in 4 ways, for example, as 1551335769 + 25426215936 = 39387^2 + 159456^2 .

It is not a de Polignac number, because 26977551705 - 2³ = 26977551697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23057152 + ... + 23058321.

It is an arithmetic number, because the mean of its divisors is an integer number (2098254067).

Almost surely, 2^26977551705 is an apocalyptic number.

It is an amenable number.

26977551705 is a deficient number, since it is larger than the sum of its proper divisors (23380545903).

26977551705 is a wasteful number, since it uses less digits than its factorization.

26977551705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46115497 (or 46115494 counting only the distinct ones).

The product of its (nonzero) digits is 4630500, while the sum is 54.

The spelling of 26977551705 in words is "twenty-six billion, nine hundred seventy-seven million, five hundred fifty-one thousand, seven hundred five".