913638261212 has 12 divisors (see below), whose sum is σ = 1654000300680. Its totient is φ = 441066746736.

The previous prime is 913638261169. The next prime is 913638261229. The reversal of 913638261212 is 212162836319.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3938095838 + ... + 3938096069.

It is an arithmetic number, because the mean of its divisors is an integer number (137833358390).

Almost surely, 2^913638261212 is an apocalyptic number.

It is an amenable number.

913638261212 is a deficient number, since it is larger than the sum of its proper divisors (740362039468).

913638261212 is a wasteful number, since it uses less digits than its factorization.

913638261212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7876191940 (or 7876191938 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The spelling of 913638261212 in words is "nine hundred thirteen billion, six hundred thirty-eight million, two hundred sixty-one thousand, two hundred twelve".