20019292738191 has 12 divisors (see below), whose sum is σ = 28964394992832. Its totient is φ = 13324208013216.

The previous prime is 20019292738183. The next prime is 20019292738219. The reversal of 20019292738191 is 19183729291002.

20019292738191 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 92 + 92 + 7 + 381 + 91 = 666.

It is not a de Polignac number, because 20019292738191 - 2³ = 20019292738183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20019292738091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1832256366 + ... + 1832267291.

It is an arithmetic number, because the mean of its divisors is an integer number (2413699582736).

Almost surely, 2^{20019292738191} is an apocalyptic number.

20019292738191 is a deficient number, since it is larger than the sum of its proper divisors (8945102254641).

20019292738191 is a wasteful number, since it uses less digits than its factorization.

20019292738191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664524270 (or 3664524267 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The spelling of 20019292738191 in words is "twenty trillion, nineteen billion, two hundred ninety-two million, seven hundred thirty-eight thousand, one hundred ninety-one".