18703949716 has 12 divisors (see below), whose sum is σ = 32745504960. Its totient is φ = 9348091160.

The previous prime is 18703949713. The next prime is 18703949717. The reversal of 18703949716 is 61794930781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18703949711) 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, 960076 + ... + 979363.

It is an arithmetic number, because the mean of its divisors is an integer number (2728792080).

Almost surely, 2^18703949716 is an apocalyptic number.

It is an amenable number.

18703949716 is a deficient number, since it is larger than the sum of its proper divisors (14041555244).

18703949716 is a wasteful number, since it uses less digits than its factorization.

18703949716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941854 (or 1941852 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 18703949716 in words is "eighteen billion, seven hundred three million, nine hundred forty-nine thousand, seven hundred sixteen".