19504342616 has 32 divisors (see below), whose sum is σ = 39906017280. Its totient is φ = 8863216800.

The previous prime is 19504342591. The next prime is 19504342643. The reversal of 19504342616 is 61624340591.

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, 321161 + ... + 377031.

It is an arithmetic number, because the mean of its divisors is an integer number (1247063040).

Almost surely, 2^19504342616 is an apocalyptic number.

It is an amenable number.

19504342616 is an abundant number, since it is smaller than the sum of its proper divisors (20401674664).

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

19504342616 is a wasteful number, since it uses less digits than its factorization.

19504342616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59855 (or 59851 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 19504342616 in words is "nineteen billion, five hundred four million, three hundred forty-two thousand, six hundred sixteen".