18694462963 has 4 divisors (see below), whose sum is σ = 20393959608. Its totient is φ = 16994966320.

The previous prime is 18694462939. The next prime is 18694462973. The reversal of 18694462963 is 36926449681.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18694462963 - 2¹⁷ = 18694331891 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 18694462898 and 18694462907.

It is not an unprimeable number, because it can be changed into a prime (18694462973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849748306 + ... + 849748327.

It is an arithmetic number, because the mean of its divisors is an integer number (5098489902).

Almost surely, 2^18694462963 is an apocalyptic number.

18694462963 is a deficient number, since it is larger than the sum of its proper divisors (1699496645).

18694462963 is a wasteful number, since it uses less digits than its factorization.

18694462963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699496644.

The product of its digits is 13436928, while the sum is 58.

The spelling of 18694462963 in words is "eighteen billion, six hundred ninety-four million, four hundred sixty-two thousand, nine hundred sixty-three".