18974470063 has 8 divisors (see below), whose sum is σ = 19555968960. Its totient is φ = 18400379040.

The previous prime is 18974470013. The next prime is 18974470091. The reversal of 18974470063 is 36007447981.

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 18974470063 - 2²¹ = 18972372911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18974469989 and 18974470016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18974470013) 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, 1846768 + ... + 1857013.

It is an arithmetic number, because the mean of its divisors is an integer number (2444496120).

Almost surely, 2^18974470063 is an apocalyptic number.

18974470063 is a deficient number, since it is larger than the sum of its proper divisors (581498897).

18974470063 is a wasteful number, since it uses less digits than its factorization.

18974470063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703937.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 18974470063 in words is "eighteen billion, nine hundred seventy-four million, four hundred seventy thousand, sixty-three".