26318520780 has 48 divisors (see below), whose sum is σ = 73747865184. Its totient is φ = 7012938240.

The previous prime is 26318520773. The next prime is 26318520847. The reversal of 26318520780 is 8702581362.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86767 + ... + 245286.

It is an arithmetic number, because the mean of its divisors is an integer number (1536413858).

Almost surely, 2^26318520780 is an apocalyptic number.

26318520780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26318520780 is an abundant number, since it is smaller than the sum of its proper divisors (47429344404).

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

26318520780 is a wasteful number, since it uses less digits than its factorization.

26318520780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333386 (or 333384 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 26318520780 in words is "twenty-six billion, three hundred eighteen million, five hundred twenty thousand, seven hundred eighty".