26977389716 has 12 divisors (see below), whose sum is σ = 47394131988. Its totient is φ = 13436209152.

The previous prime is 26977389713. The next prime is 26977389731. The reversal of 26977389716 is 61798377962.

It can be written as a sum of positive squares in 2 ways, for example, as 26766268816 + 211120900 = 163604^2 + 14530^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26977389713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13120271 + ... + 13122326.

It is an arithmetic number, because the mean of its divisors is an integer number (3949510999).

Almost surely, 2^26977389716 is an apocalyptic number.

It is an amenable number.

26977389716 is a deficient number, since it is larger than the sum of its proper divisors (20416742272).

26977389716 is a wasteful number, since it uses less digits than its factorization.

26977389716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26242858 (or 26242856 counting only the distinct ones).

The product of its digits is 48009024, while the sum is 65.

The spelling of 26977389716 in words is "twenty-six billion, nine hundred seventy-seven million, three hundred eighty-nine thousand, seven hundred sixteen".