18925346471 has 2 divisors, whose sum is σ = 18925346472. Its totient is φ = 18925346470.

The previous prime is 18925346467. The next prime is 18925346501. The reversal of 18925346471 is 17464352981.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18925346471 - 2² = 18925346467 is a prime.

It is a super-3 number, since 3×18925346471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18925346431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9462673235 + 9462673236.

It is an arithmetic number, because the mean of its divisors is an integer number (9462673236).

Almost surely, 2^18925346471 is an apocalyptic number.

18925346471 is a deficient number, since it is larger than the sum of its proper divisors (1).

18925346471 is an equidigital number, since it uses as much as digits as its factorization.

18925346471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The spelling of 18925346471 in words is "eighteen billion, nine hundred twenty-five million, three hundred forty-six thousand, four hundred seventy-one".