9912743412 has 96 divisors (see below), whose sum is σ = 28354959360. Its totient is φ = 2652228480.

The previous prime is 9912743411. The next prime is 9912743413. The reversal of 9912743412 is 2143472199.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9912743411) and next prime (9912743413).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9912743411) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 86112 + ... + 165047.

It is an arithmetic number, because the mean of its divisors is an integer number (295364160).

Almost surely, 2^9912743412 is an apocalyptic number.

9912743412 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9912743412 is an abundant number, since it is smaller than the sum of its proper divisors (18442215948).

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

9912743412 is a wasteful number, since it uses less digits than its factorization.

9912743412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251213 (or 251211 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 9912743412 is about 99562.7611710322. The cubic root of 9912743412 is about 2148.1500879975.

The spelling of 9912743412 in words is "nine billion, nine hundred twelve million, seven hundred forty-three thousand, four hundred twelve".