26138932196 has 24 divisors (see below), whose sum is σ = 49352943864. Its totient is φ = 12041809920.

The previous prime is 26138932177. The next prime is 26138932201. The reversal of 26138932196 is 69123983162.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 114789796 + 26024142400 = 10714^2 + 161320^2 .

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, 436445 + ... + 492708.

It is an arithmetic number, because the mean of its divisors is an integer number (2056372661).

Almost surely, 2^26138932196 is an apocalyptic number.

26138932196 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

26138932196 is a deficient number, since it is larger than the sum of its proper divisors (23214011668).

26138932196 is a wasteful number, since it uses less digits than its factorization.

26138932196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929711 (or 929709 counting only the distinct ones).

The product of its digits is 839808, while the sum is 50.

The spelling of 26138932196 in words is "twenty-six billion, one hundred thirty-eight million, nine hundred thirty-two thousand, one hundred ninety-six".