26785502220 has 48 divisors (see below), whose sum is σ = 75006505728. Its totient is φ = 7142124480.

The previous prime is 26785502201. The next prime is 26785502231. The reversal of 26785502220 is 2220558762.

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, 1251247 + ... + 1272473.

It is an arithmetic number, because the mean of its divisors is an integer number (1562635536).

Almost surely, 2^26785502220 is an apocalyptic number.

26785502220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26785502220 is an abundant number, since it is smaller than the sum of its proper divisors (48221003508).

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

26785502220 is a wasteful number, since it uses less digits than its factorization.

26785502220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42270 (or 42268 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

It can be divided in two parts, 2678550 and 2220, that added together give a triangular number (2680770 = T₂₃₁₅).

The spelling of 26785502220 in words is "twenty-six billion, seven hundred eighty-five million, five hundred two thousand, two hundred twenty".