23420444620247 has 16 divisors (see below), whose sum is σ = 24772361376000. Its totient is φ = 22080713016384.

The previous prime is 23420444620163. The next prime is 23420444620249. The reversal of 23420444620247 is 74202644402432.

It is a happy number.

It is not a de Polignac number, because 23420444620247 - 2²⁰ = 23420443571671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23420444620198 and 23420444620207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420444620249) 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, 340403 + ... + 6852500.

It is an arithmetic number, because the mean of its divisors is an integer number (1548272586000).

Almost surely, 2^{23420444620247} is an apocalyptic number.

23420444620247 is a deficient number, since it is larger than the sum of its proper divisors (1351916755753).

23420444620247 is a wasteful number, since it uses less digits than its factorization.

23420444620247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7193750.

The product of its (nonzero) digits is 2064384, while the sum is 44.

The spelling of 23420444620247 in words is "twenty-three trillion, four hundred twenty billion, four hundred forty-four million, six hundred twenty thousand, two hundred forty-seven".