26212412840 has 64 divisors (see below), whose sum is σ = 59610330000. Its totient is φ = 10372710400.

The previous prime is 26212412827. The next prime is 26212412843. The reversal of 26212412840 is 4821421262.

It can be written as a sum of positive squares in 8 ways, for example, as 21159193444 + 5053219396 = 145462^2 + 71086^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26212412797 and 26212412806.

It is not an unprimeable number, because it can be changed into a prime (26212412843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7872296 + ... + 7875624.

Almost surely, 2^26212412840 is an apocalyptic number.

26212412840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26212412840 is an abundant number, since it is smaller than the sum of its proper divisors (33397917160).

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

26212412840 is a wasteful number, since it uses less digits than its factorization.

26212412840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390 (or 5386 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The spelling of 26212412840 in words is "twenty-six billion, two hundred twelve million, four hundred twelve thousand, eight hundred forty".