18974625467 has 4 divisors (see below), whose sum is σ = 21685286256. Its totient is φ = 16263964680.

The previous prime is 18974625457. The next prime is 18974625511. The reversal of 18974625467 is 76452647981.

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 18974625467 - 2⁶ = 18974625403 is a prime.

It is a super-2 number, since 2×18974625467² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18974625457) 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, 1355330384 + ... + 1355330397.

It is an arithmetic number, because the mean of its divisors is an integer number (5421321564).

Almost surely, 2^18974625467 is an apocalyptic number.

18974625467 is a deficient number, since it is larger than the sum of its proper divisors (2710660789).

18974625467 is an equidigital number, since it uses as much as digits as its factorization.

18974625467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710660788.

The product of its digits is 20321280, while the sum is 59.

The spelling of 18974625467 in words is "eighteen billion, nine hundred seventy-four million, six hundred twenty-five thousand, four hundred sixty-seven".