26431428836 has 12 divisors (see below), whose sum is σ = 47383171500. Its totient is φ = 12893379840.

The previous prime is 26431428823. The next prime is 26431428839. The reversal of 26431428836 is 63882413462.

It can be written as a sum of positive squares in 2 ways, for example, as 797497600 + 25633931236 = 28240^2 + 160106^2 .

It is not an unprimeable number, because it can be changed into a prime (26431428839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80583461 + ... + 80583788.

It is an arithmetic number, because the mean of its divisors is an integer number (3948597625).

Almost surely, 2^26431428836 is an apocalyptic number.

It is an amenable number.

26431428836 is a deficient number, since it is larger than the sum of its proper divisors (20951742664).

26431428836 is a wasteful number, since it uses less digits than its factorization.

26431428836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161167294 (or 161167292 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 47.

The spelling of 26431428836 in words is "twenty-six billion, four hundred thirty-one million, four hundred twenty-eight thousand, eight hundred thirty-six".