26197694604 has 36 divisors (see below), whose sum is σ = 66242181096. Its totient is φ = 8729897088.

The previous prime is 26197694599. The next prime is 26197694681. The reversal of 26197694604 is 40649679162.

It is a happy number.

26197694604 is a `hidden beast` number, since 26 + 1 + 9 + 7 + 6 + 9 + 4 + 604 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10132 + ... + 229124.

It is an arithmetic number, because the mean of its divisors is an integer number (1840060586).

Almost surely, 2^26197694604 is an apocalyptic number.

It is an amenable number.

26197694604 is an abundant number, since it is smaller than the sum of its proper divisors (40044486492).

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

26197694604 is a wasteful number, since it uses less digits than its factorization.

26197694604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222326 (or 222321 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

It can be divided in two parts, 26197 and 694604, that added together give a square (720801 = 849²).

The spelling of 26197694604 in words is "twenty-six billion, one hundred ninety-seven million, six hundred ninety-four thousand, six hundred four".