26381127656 has 32 divisors (see below), whose sum is σ = 53461952040. Its totient is φ = 12131935488.

The previous prime is 26381127637. The next prime is 26381127737. The reversal of 26381127656 is 65672118362.

It can be written as a sum of positive squares in 4 ways, for example, as 19013652100 + 7367475556 = 137890^2 + 85834^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26381127656.

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, 429071 + ... + 486686.

Almost surely, 2^26381127656 is an apocalyptic number.

26381127656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

26381127656 is an abundant number, since it is smaller than the sum of its proper divisors (27080824384).

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

26381127656 is a wasteful number, since it uses less digits than its factorization.

26381127656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916053 (or 916049 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The spelling of 26381127656 in words is "twenty-six billion, three hundred eighty-one million, one hundred twenty-seven thousand, six hundred fifty-six".