23478482981 has 2 divisors, whose sum is σ = 23478482982. Its totient is φ = 23478482980.

The previous prime is 23478482953. The next prime is 23478483031. The reversal of 23478482981 is 18928487432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19770890881 + 3707592100 = 140609^2 + 60890^2 .

It is a cyclic number.

It is not a de Polignac number, because 23478482981 - 2⁶ = 23478482917 is a prime.

It is a super-2 number, since 2×23478482981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23478482921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11739241490 + 11739241491.

It is an arithmetic number, because the mean of its divisors is an integer number (11739241491).

Almost surely, 2^23478482981 is an apocalyptic number.

It is an amenable number.

23478482981 is a deficient number, since it is larger than the sum of its proper divisors (1).

23478482981 is an equidigital number, since it uses as much as digits as its factorization.

23478482981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6193152, while the sum is 56.

The spelling of 23478482981 in words is "twenty-three billion, four hundred seventy-eight million, four hundred eighty-two thousand, nine hundred eighty-one".