26604558146 has 12 divisors (see below), whose sum is σ = 40456503222. Its totient is φ = 13119084144.

The previous prime is 26604558061. The next prime is 26604558151. The reversal of 26604558146 is 64185540662.

It can be written as a sum of positive squares in only one way, i.e., 22048983121 + 4555575025 = 148489^2 + 67495^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26604558146.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1964105 + ... + 1977603.

Almost surely, 2^26604558146 is an apocalyptic number.

26604558146 is a deficient number, since it is larger than the sum of its proper divisors (13851945076).

26604558146 is an frugal number, since it uses more digits than its factorization.

26604558146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27073 (or 13574 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 26604558146 in words is "twenty-six billion, six hundred four million, five hundred fifty-eight thousand, one hundred forty-six".