26980796769 has 8 divisors (see below), whose sum is σ = 36292753632. Its totient is φ = 17828018880.

The previous prime is 26980796743. The next prime is 26980796779. The reversal of 26980796769 is 96769708962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26980796769 - 2⁹ = 26980796257 is a prime.

It is a super-2 number, since 2×26980796769² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26980796779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39794347 + ... + 39795024.

It is an arithmetic number, because the mean of its divisors is an integer number (4536594204).

Almost surely, 2^26980796769 is an apocalyptic number.

It is an amenable number.

26980796769 is a deficient number, since it is larger than the sum of its proper divisors (9311956863).

26980796769 is a wasteful number, since it uses less digits than its factorization.

26980796769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79589487.

The product of its (nonzero) digits is 123451776, while the sum is 69.

The spelling of 26980796769 in words is "twenty-six billion, nine hundred eighty million, seven hundred ninety-six thousand, seven hundred sixty-nine".