263121600228 has 24 divisors (see below), whose sum is σ = 616396425120. Its totient is φ = 87357768000.

The previous prime is 263121600167. The next prime is 263121600233. The reversal of 263121600228 is 822006121362.

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, 43675873 + ... + 43681896.

It is an arithmetic number, because the mean of its divisors is an integer number (25683184380).

Almost surely, 2^263121600228 is an apocalyptic number.

It is an amenable number.

263121600228 is an abundant number, since it is smaller than the sum of its proper divisors (353274824892).

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

263121600228 is a wasteful number, since it uses less digits than its factorization.

263121600228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87358027 (or 87358025 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 263121600228 in words is "two hundred sixty-three billion, one hundred twenty-one million, six hundred thousand, two hundred twenty-eight".