26250232198 has 4 divisors (see below), whose sum is σ = 39375348300. Its totient is φ = 13125116098.

The previous prime is 26250232193. The next prime is 26250232199. The reversal of 26250232198 is 89123205262.

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

It is a super-2 number, since 2×26250232198² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 26250232198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26250232193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6562558048 + ... + 6562558051.

It is an arithmetic number, because the mean of its divisors is an integer number (9843837075).

Almost surely, 2^26250232198 is an apocalyptic number.

26250232198 is a deficient number, since it is larger than the sum of its proper divisors (13125116102).

26250232198 is a wasteful number, since it uses less digits than its factorization.

26250232198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13125116101.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 26250232198 in words is "twenty-six billion, two hundred fifty million, two hundred thirty-two thousand, one hundred ninety-eight".