26349660838 has 4 divisors (see below), whose sum is σ = 39524491260. Its totient is φ = 13174830418.

The previous prime is 26349660823. The next prime is 26349660863. The reversal of 26349660838 is 83806694362.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6587415208 + ... + 6587415211.

It is an arithmetic number, because the mean of its divisors is an integer number (9881122815).

Almost surely, 2^26349660838 is an apocalyptic number.

26349660838 is a deficient number, since it is larger than the sum of its proper divisors (13174830422).

26349660838 is a wasteful number, since it uses less digits than its factorization.

26349660838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13174830421.

The product of its (nonzero) digits is 8957952, while the sum is 55.

The spelling of 26349660838 in words is "twenty-six billion, three hundred forty-nine million, six hundred sixty thousand, eight hundred thirty-eight".