26966649997 has 8 divisors (see below), whose sum is σ = 31136751296. Its totient is φ = 22875979392.

The previous prime is 26966649977. The next prime is 26966650133. The reversal of 26966649997 is 79994666962.

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

It is not a de Polignac number, because 26966649997 - 2¹⁹ = 26966125709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26966649937) 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, 19856943 + ... + 19858300.

It is an arithmetic number, because the mean of its divisors is an integer number (3892093912).

Almost surely, 2^26966649997 is an apocalyptic number.

It is an amenable number.

26966649997 is a deficient number, since it is larger than the sum of its proper divisors (4170101299).

26966649997 is an equidigital number, since it uses as much as digits as its factorization.

26966649997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39715347.

The product of its digits is 476171136, while the sum is 73.

The spelling of 26966649997 in words is "twenty-six billion, nine hundred sixty-six million, six hundred forty-nine thousand, nine hundred ninety-seven".