26510742220 has 48 divisors (see below), whose sum is σ = 55827072000. Its totient is φ = 10574919360.

The previous prime is 26510742169. The next prime is 26510742221. The reversal of 26510742220 is 2224701562.

It is not an unprimeable number, because it can be changed into a prime (26510742221) 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, 18949081 + ... + 18950479.

It is an arithmetic number, because the mean of its divisors is an integer number (1163064000).

Almost surely, 2^26510742220 is an apocalyptic number.

26510742220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26510742220 is an abundant number, since it is smaller than the sum of its proper divisors (29316329780).

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

26510742220 is a wasteful number, since it uses less digits than its factorization.

26510742220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358 (or 3356 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 26510742220 in words is "twenty-six billion, five hundred ten million, seven hundred forty-two thousand, two hundred twenty".