26949123346 has 16 divisors (see below), whose sum is σ = 40515124320. Its totient is φ = 13444116480.

The previous prime is 26949123343. The next prime is 26949123349. The reversal of 26949123346 is 64332194962.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26949123343) and next prime (26949123349).

It is a self number, because there is not a number n which added to its sum of digits gives 26949123346.

It is not an unprimeable number, because it can be changed into a prime (26949123343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1746706 + ... + 1762066.

It is an arithmetic number, because the mean of its divisors is an integer number (2532195270).

Almost surely, 2^26949123346 is an apocalyptic number.

26949123346 is a deficient number, since it is larger than the sum of its proper divisors (13566000974).

26949123346 is a wasteful number, since it uses less digits than its factorization.

26949123346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17289.

The product of its digits is 1679616, while the sum is 49.

The spelling of 26949123346 in words is "twenty-six billion, nine hundred forty-nine million, one hundred twenty-three thousand, three hundred forty-six".