19486489814 has 16 divisors (see below), whose sum is σ = 31893267456. Its totient is φ = 8855749800.

The previous prime is 19486489811. The next prime is 19486489829. The reversal of 19486489814 is 41898468491.

It is a happy number.

It is a super-2 number, since 2×19486489814² (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 (19486489811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30419 + ... + 199745.

It is an arithmetic number, because the mean of its divisors is an integer number (1993329216).

Almost surely, 2^19486489814 is an apocalyptic number.

19486489814 is a deficient number, since it is larger than the sum of its proper divisors (12406777642).

19486489814 is a wasteful number, since it uses less digits than its factorization.

19486489814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174571.

The product of its digits is 15925248, while the sum is 62.

The spelling of 19486489814 in words is "nineteen billion, four hundred eighty-six million, four hundred eighty-nine thousand, eight hundred fourteen".