19364138311 has 16 divisors (see below), whose sum is σ = 23174290944. Its totient is φ = 15820051104.

The previous prime is 19364138309. The next prime is 19364138333. The reversal of 19364138311 is 11383146391.

It is a cyclic number.

It is not a de Polignac number, because 19364138311 - 2¹ = 19364138309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19364108311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166936 + ... + 258061.

It is an arithmetic number, because the mean of its divisors is an integer number (1448393184).

Almost surely, 2^19364138311 is an apocalyptic number.

19364138311 is a deficient number, since it is larger than the sum of its proper divisors (3810152633).

19364138311 is a wasteful number, since it uses less digits than its factorization.

19364138311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425310.

The product of its digits is 46656, while the sum is 40.

The spelling of 19364138311 in words is "nineteen billion, three hundred sixty-four million, one hundred thirty-eight thousand, three hundred eleven".