26198366959842 has 64 divisors (see below), whose sum is σ = 65326481261568. Its totient is φ = 6804699480000.

The previous prime is 26198366959823. The next prime is 26198366959871. The reversal of 26198366959842 is 24895966389162.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55134592 + ... + 55607732.

It is an arithmetic number, because the mean of its divisors is an integer number (1020726269712).

Almost surely, 2^{26198366959842} is an apocalyptic number.

26198366959842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26198366959842 is an abundant number, since it is smaller than the sum of its proper divisors (39128114301726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26198366959842 is a wasteful number, since it uses less digits than its factorization.

26198366959842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593015.

The product of its digits is 2418647040, while the sum is 78.

The spelling of 26198366959842 in words is "twenty-six trillion, one hundred ninety-eight billion, three hundred sixty-six million, nine hundred fifty-nine thousand, eight hundred forty-two".