26198640358 has 16 divisors (see below), whose sum is σ = 43867492416. Its totient is φ = 11631531240.

The previous prime is 26198640323. The next prime is 26198640367. The reversal of 26198640358 is 85304689162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13846116 + ... + 13848007.

It is an arithmetic number, because the mean of its divisors is an integer number (2741718276).

Almost surely, 2^26198640358 is an apocalyptic number.

26198640358 is a deficient number, since it is larger than the sum of its proper divisors (17668852058).

26198640358 is a wasteful number, since it uses less digits than its factorization.

26198640358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27694179.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 26198640358 in words is "twenty-six billion, one hundred ninety-eight million, six hundred forty thousand, three hundred fifty-eight".