19534463532 has 72 divisors (see below), whose sum is σ = 49621178880. Its totient is φ = 6479596800.

The previous prime is 19534463491. The next prime is 19534463549. The reversal of 19534463532 is 23536443591.

19534463532 is a `hidden beast` number, since 1 + 9 + 5 + 3 + 4 + 4 + 635 + 3 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12139944 + ... + 12141552.

It is an arithmetic number, because the mean of its divisors is an integer number (689183040).

Almost surely, 2^19534463532 is an apocalyptic number.

19534463532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19534463532 is an abundant number, since it is smaller than the sum of its proper divisors (30086715348).

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

19534463532 is a wasteful number, since it uses less digits than its factorization.

19534463532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063 (or 3058 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 19534463532 in words is "nineteen billion, five hundred thirty-four million, four hundred sixty-three thousand, five hundred thirty-two".