21350226276 has 36 divisors (see below), whose sum is σ = 54001348492. Its totient is φ = 7112427264.

The previous prime is 21350226239. The next prime is 21350226281. The reversal of 21350226276 is 67262205312.

21350226276 is a `hidden beast` number, since 2 + 1 + 3 + 5 + 0 + 22 + 627 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10849305600 + 10500920676 = 104160^2 + 102474^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 21350226276.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119305 + ... + 238608.

Almost surely, 2^21350226276 is an apocalyptic number.

It is an amenable number.

21350226276 is an abundant number, since it is smaller than the sum of its proper divisors (32651122216).

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

21350226276 is a wasteful number, since it uses less digits than its factorization.

21350226276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359580 (or 359575 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

It can be divided in two parts, 213502 and 26276, that added together give a triangular number (239778 = T₆₉₂).

The spelling of 21350226276 in words is "twenty-one billion, three hundred fifty million, two hundred twenty-six thousand, two hundred seventy-six".