26940749369 has 8 divisors (see below), whose sum is σ = 27432494208. Its totient is φ = 26450620560.

The previous prime is 26940749359. The next prime is 26940749417. The reversal of 26940749369 is 96394704962.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26940749369 is a prime.

It is a super-2 number, since 2×26940749369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26940749359) 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, 370337 + ... + 437070.

It is an arithmetic number, because the mean of its divisors is an integer number (3429061776).

Almost surely, 2^26940749369 is an apocalyptic number.

It is an amenable number.

26940749369 is a deficient number, since it is larger than the sum of its proper divisors (491744839).

26940749369 is an equidigital number, since it uses as much as digits as its factorization.

26940749369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808015.

The product of its (nonzero) digits is 17635968, while the sum is 59.

The spelling of 26940749369 in words is "twenty-six billion, nine hundred forty million, seven hundred forty-nine thousand, three hundred sixty-nine".