19485278814 has 16 divisors (see below), whose sum is σ = 40314370320. Its totient is φ = 6271124160.

The previous prime is 19485278803. The next prime is 19485278893. The reversal of 19485278814 is 41887258491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55992007 + ... + 55992354.

It is an arithmetic number, because the mean of its divisors is an integer number (2519648145).

Almost surely, 2^19485278814 is an apocalyptic number.

19485278814 is an abundant number, since it is smaller than the sum of its proper divisors (20829091506).

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

19485278814 is a wasteful number, since it uses less digits than its factorization.

19485278814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111984395.

The product of its digits is 5160960, while the sum is 57.

The spelling of 19485278814 in words is "nineteen billion, four hundred eighty-five million, two hundred seventy-eight thousand, eight hundred fourteen".