23550434939 has 2 divisors, whose sum is σ = 23550434940. Its totient is φ = 23550434938.

The previous prime is 23550434911. The next prime is 23550434953. The reversal of 23550434939 is 93943405532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23550434939 - 2¹² = 23550430843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23550434893 and 23550434902.

It is not a weakly prime, because it can be changed into another prime (23550434959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11775217469 + 11775217470.

It is an arithmetic number, because the mean of its divisors is an integer number (11775217470).

Almost surely, 2^23550434939 is an apocalyptic number.

23550434939 is a deficient number, since it is larger than the sum of its proper divisors (1).

23550434939 is an equidigital number, since it uses as much as digits as its factorization.

23550434939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1749600, while the sum is 47.

The spelling of 23550434939 in words is "twenty-three billion, five hundred fifty million, four hundred thirty-four thousand, nine hundred thirty-nine".