263681133212 has 24 divisors (see below), whose sum is σ = 527416611456. Its totient is φ = 112994554608.

The previous prime is 263681133203. The next prime is 263681133229. The reversal of 263681133212 is 212331186362.

It is a super-3 number, since 3×263681133212³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

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, 205838 + ... + 754805.

It is an arithmetic number, because the mean of its divisors is an integer number (21975692144).

Almost surely, 2^263681133212 is an apocalyptic number.

It is an amenable number.

263681133212 is an abundant number, since it is smaller than the sum of its proper divisors (263735478244).

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

263681133212 is a wasteful number, since it uses less digits than its factorization.

263681133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970457 (or 970455 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The spelling of 263681133212 in words is "two hundred sixty-three billion, six hundred eighty-one million, one hundred thirty-three thousand, two hundred twelve".