26930651879 has 4 divisors (see below), whose sum is σ = 27142704384. Its totient is φ = 26718599376.

The previous prime is 26930651873. The next prime is 26930651887. The reversal of 26930651879 is 97815603962.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26930651879 - 2²⁰ = 26929603303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26930651873) 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, 106026062 + ... + 106026315.

It is an arithmetic number, because the mean of its divisors is an integer number (6785676096).

Almost surely, 2^26930651879 is an apocalyptic number.

26930651879 is a deficient number, since it is larger than the sum of its proper divisors (212052505).

26930651879 is a wasteful number, since it uses less digits than its factorization.

26930651879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212052504.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 26930651879 in words is "twenty-six billion, nine hundred thirty million, six hundred fifty-one thousand, eight hundred seventy-nine".