19195038134 has 16 divisors (see below), whose sum is σ = 28886709456. Its totient is φ = 9566172000.

The previous prime is 19195038131. The next prime is 19195038139. The reversal of 19195038134 is 43183059191.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19195038131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1143764 + ... + 1160424.

It is an arithmetic number, because the mean of its divisors is an integer number (1805419341).

Almost surely, 2^19195038134 is an apocalyptic number.

19195038134 is a deficient number, since it is larger than the sum of its proper divisors (9691671322).

19195038134 is a wasteful number, since it uses less digits than its factorization.

19195038134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18511.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 19195038134 in words is "nineteen billion, one hundred ninety-five million, thirty-eight thousand, one hundred thirty-four".