19614870612 has 18 divisors (see below), whose sum is σ = 49582034138. Its totient is φ = 6538290192.

The previous prime is 19614870607. The next prime is 19614870619. The reversal of 19614870612 is 21607841691.

19614870612 is a `hidden beast` number, since 19 + 6 + 14 + 8 + 7 + 0 + 612 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18483490116 + 1131380496 = 135954^2 + 33636^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19614870619) 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 5 ways as a sum of consecutive naturals, for example, 272428723 + ... + 272428794.

Almost surely, 2^19614870612 is an apocalyptic number.

19614870612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19614870612 is an abundant number, since it is smaller than the sum of its proper divisors (29967163526).

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

19614870612 is a wasteful number, since it uses less digits than its factorization.

19614870612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544857527 (or 544857522 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 19614870612 in words is "nineteen billion, six hundred fourteen million, eight hundred seventy thousand, six hundred twelve".