949581204959 has 2 divisors, whose sum is σ = 949581204960. Its totient is φ = 949581204958.

The previous prime is 949581204899. The next prime is 949581204989. The reversal of 949581204959 is 959402185949.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-949581204959 is a prime.

It is a super-2 number, since 2×949581204959² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 949581204895 and 949581204904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949581204989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474790602479 + 474790602480.

It is an arithmetic number, because the mean of its divisors is an integer number (474790602480).

Almost surely, 2^949581204959 is an apocalyptic number.

949581204959 is a deficient number, since it is larger than the sum of its proper divisors (1).

949581204959 is an equidigital number, since it uses as much as digits as its factorization.

949581204959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41990400, while the sum is 65.

The spelling of 949581204959 in words is "nine hundred forty-nine billion, five hundred eighty-one million, two hundred four thousand, nine hundred fifty-nine".