19507134042 has 64 divisors (see below), whose sum is σ = 47308187520. Its totient is φ = 5908982400.

The previous prime is 19507134029. The next prime is 19507134067. The reversal of 19507134042 is 24043170591.

19507134042 is a `hidden beast` number, since 19 + 507 + 134 + 0 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 19507133988 and 19507134006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2177292 + ... + 2186232.

It is an arithmetic number, because the mean of its divisors is an integer number (739190430).

Almost surely, 2^19507134042 is an apocalyptic number.

19507134042 is an abundant number, since it is smaller than the sum of its proper divisors (27801053478).

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

19507134042 is a wasteful number, since it uses less digits than its factorization.

19507134042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12636 (or 12630 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 19507134042 in words is "nineteen billion, five hundred seven million, one hundred thirty-four thousand, forty-two".