26280022212 has 192 divisors, whose sum is σ = 71500800000. Its totient is φ = 8337893760.

The previous prime is 26280022207. The next prime is 26280022217. The reversal of 26280022212 is 21222008262.

26280022212 is a `hidden beast` number, since 2 + 628 + 0 + 0 + 2 + 22 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (26280022207) and next prime (26280022217).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (26280022217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69340239 + ... + 69340617.

It is an arithmetic number, because the mean of its divisors is an integer number (372400000).

Almost surely, 2^26280022212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26280022212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35750400000).

26280022212 is an abundant number, since it is smaller than the sum of its proper divisors (45220777788).

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

26280022212 is a wasteful number, since it uses less digits than its factorization.

26280022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 26280022212 in words is "twenty-six billion, two hundred eighty million, twenty-two thousand, two hundred twelve".