18761315133 has 16 divisors (see below), whose sum is σ = 27296675136. Its totient is φ = 11367373440.

The previous prime is 18761315093. The next prime is 18761315147. The reversal of 18761315133 is 33151316781.

It is not a de Polignac number, because 18761315133 - 2¹⁴ = 18761298749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18761315091 and 18761315100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18761315333) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 47041 + ... + 199337.

It is an arithmetic number, because the mean of its divisors is an integer number (1706042196).

Almost surely, 2^18761315133 is an apocalyptic number.

It is an amenable number.

18761315133 is a deficient number, since it is larger than the sum of its proper divisors (8535360003).

18761315133 is a wasteful number, since it uses less digits than its factorization.

18761315133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156044.

The product of its digits is 45360, while the sum is 39.

The spelling of 18761315133 in words is "eighteen billion, seven hundred sixty-one million, three hundred fifteen thousand, one hundred thirty-three".