18764395103 has 8 divisors (see below), whose sum is σ = 19824454080. Its totient is φ = 17731870240.

The previous prime is 18764395073. The next prime is 18764395121. The reversal of 18764395103 is 30159346781.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18764395103 - 2¹² = 18764391007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18764395603) 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, 6882128 + ... + 6884853.

It is an arithmetic number, because the mean of its divisors is an integer number (2478056760).

Almost surely, 2^18764395103 is an apocalyptic number.

18764395103 is a deficient number, since it is larger than the sum of its proper divisors (1060058977).

18764395103 is a wasteful number, since it uses less digits than its factorization.

18764395103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13767057.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 18764395103 in words is "eighteen billion, seven hundred sixty-four million, three hundred ninety-five thousand, one hundred three".