18630897467 has 16 divisors (see below), whose sum is σ = 22936704000. Its totient is φ = 14736835872.

The previous prime is 18630897449. The next prime is 18630897473. The reversal of 18630897467 is 76479803681.

It is a cyclic number.

It is not a de Polignac number, because 18630897467 - 2⁶ = 18630897403 is a prime.

It is a super-2 number, since 2×18630897467² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18630893467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325034 + ... + 378032.

It is an arithmetic number, because the mean of its divisors is an integer number (1433544000).

Almost surely, 2^18630897467 is an apocalyptic number.

18630897467 is a deficient number, since it is larger than the sum of its proper divisors (4305806533).

18630897467 is a wasteful number, since it uses less digits than its factorization.

18630897467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56882.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 18630897467 in words is "eighteen billion, six hundred thirty million, eight hundred ninety-seven thousand, four hundred sixty-seven".