19677486164 has 24 divisors (see below), whose sum is σ = 39716033280. Its totient is φ = 8355838176.

The previous prime is 19677486163. The next prime is 19677486181. The reversal of 19677486164 is 46168477691.

It is a super-2 number, since 2×19677486164² (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 (19677486161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3220652 + ... + 3226755.

It is an arithmetic number, because the mean of its divisors is an integer number (1654834720).

Almost surely, 2^19677486164 is an apocalyptic number.

19677486164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19677486164 is an abundant number, since it is smaller than the sum of its proper divisors (20038547116).

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

19677486164 is a wasteful number, since it uses less digits than its factorization.

19677486164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6447527 (or 6447525 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 59.

The spelling of 19677486164 in words is "nineteen billion, six hundred seventy-seven million, four hundred eighty-six thousand, one hundred sixty-four".