19487674134 has 12 divisors (see below), whose sum is σ = 42223293996. Its totient is φ = 6495891372.

The previous prime is 19487674133. The next prime is 19487674183. The reversal of 19487674134 is 43147678491.

It is a happy number.

19487674134 is a `hidden beast` number, since 1 + 94 + 87 + 67 + 413 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19487674133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 541324264 + ... + 541324299.

It is an arithmetic number, because the mean of its divisors is an integer number (3518607833).

Almost surely, 2^19487674134 is an apocalyptic number.

19487674134 is an abundant number, since it is smaller than the sum of its proper divisors (22735619862).

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

19487674134 is a wasteful number, since it uses less digits than its factorization.

19487674134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082648571 (or 1082648568 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 19487674134 in words is "nineteen billion, four hundred eighty-seven million, six hundred seventy-four thousand, one hundred thirty-four".