26834342691 has 32 divisors (see below), whose sum is σ = 38838562560. Its totient is φ = 16382231424.

The previous prime is 26834342671. The next prime is 26834342693. The reversal of 26834342691 is 19624343862.

It is not a de Polignac number, because 26834342691 - 2³⁰ = 25760600867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26834342691.

It is not an unprimeable number, because it can be changed into a prime (26834342693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3088245 + ... + 3096921.

It is an arithmetic number, because the mean of its divisors is an integer number (1213705080).

Almost surely, 2^26834342691 is an apocalyptic number.

26834342691 is a deficient number, since it is larger than the sum of its proper divisors (12004219869).

26834342691 is a wasteful number, since it uses less digits than its factorization.

26834342691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9315.

The product of its digits is 1492992, while the sum is 48.

The spelling of 26834342691 in words is "twenty-six billion, eight hundred thirty-four million, three hundred forty-two thousand, six hundred ninety-one".