23402421463 has 2 divisors, whose sum is σ = 23402421464. Its totient is φ = 23402421462.

The previous prime is 23402421439. The next prime is 23402421481. The reversal of 23402421463 is 36412420432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23402421463 - 2¹⁷ = 23402290391 is a prime.

It is the 152979-th Hogben number.

It is a congruent number.

It is a weakly prime.

It is a nontrivial repunit in base 152978.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701210731 + 11701210732.

It is an arithmetic number, because the mean of its divisors is an integer number (11701210732).

Almost surely, 2^23402421463 is an apocalyptic number.

23402421463 is a deficient number, since it is larger than the sum of its proper divisors (1).

23402421463 is an equidigital number, since it uses as much as digits as its factorization.

23402421463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 23402421463 its reverse (36412420432), we get a palindrome (59814841895).

The spelling of 23402421463 in words is "twenty-three billion, four hundred two million, four hundred twenty-one thousand, four hundred sixty-three".