19667190012 has 24 divisors (see below), whose sum is σ = 47130384336. Its totient is φ = 6378547968.

The previous prime is 19667189989. The next prime is 19667190017. The reversal of 19667190012 is 21009176691.

It is a super-2 number, since 2×19667190012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19667190017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22147293 + ... + 22148180.

It is an arithmetic number, because the mean of its divisors is an integer number (1963766014).

Almost surely, 2^19667190012 is an apocalyptic number.

19667190012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19667190012 is an abundant number, since it is smaller than the sum of its proper divisors (27463194324).

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

19667190012 is a wasteful number, since it uses less digits than its factorization.

19667190012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44295517 (or 44295515 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 42.

The spelling of 19667190012 in words is "nineteen billion, six hundred sixty-seven million, one hundred ninety thousand, twelve".