26662432780 has 24 divisors (see below), whose sum is σ = 56032125408. Its totient is φ = 10657160448.

The previous prime is 26662432747. The next prime is 26662432801. The reversal of 26662432780 is 8723426662.

It is a self number, because there is not a number n which added to its sum of digits gives 26662432780.

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, 460269 + ... + 514948.

It is an arithmetic number, because the mean of its divisors is an integer number (2334671892).

Almost surely, 2^26662432780 is an apocalyptic number.

26662432780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26662432780 is an abundant number, since it is smaller than the sum of its proper divisors (29369692628).

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

26662432780 is a wasteful number, since it uses less digits than its factorization.

26662432780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976593 (or 976591 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 46.

The spelling of 26662432780 in words is "twenty-six billion, six hundred sixty-two million, four hundred thirty-two thousand, seven hundred eighty".