23481390245 has 4 divisors (see below), whose sum is σ = 28177668300. Its totient is φ = 18785112192.

The previous prime is 23481390221. The next prime is 23481390259. The reversal of 23481390245 is 54209318432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18223110049 + 5258280196 = 134993^2 + 72514^2 .

It is a cyclic number.

It is not a de Polignac number, because 23481390245 - 2⁶ = 23481390181 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2348139020 + ... + 2348139029.

It is an arithmetic number, because the mean of its divisors is an integer number (7044417075).

Almost surely, 2^23481390245 is an apocalyptic number.

It is an amenable number.

23481390245 is a deficient number, since it is larger than the sum of its proper divisors (4696278055).

23481390245 is an equidigital number, since it uses as much as digits as its factorization.

23481390245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4696278054.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 23481390245 in words is "twenty-three billion, four hundred eighty-one million, three hundred ninety thousand, two hundred forty-five".