479289993251 has 2 divisors, whose sum is σ = 479289993252. Its totient is φ = 479289993250.

The previous prime is 479289993233. The next prime is 479289993253. The reversal of 479289993251 is 152399982974.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479289993251 is a prime.

Together with 479289993253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (479289993253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239644996625 + 239644996626.

It is an arithmetic number, because the mean of its divisors is an integer number (239644996626).

Almost surely, 2^479289993251 is an apocalyptic number.

479289993251 is a deficient number, since it is larger than the sum of its proper divisors (1).

479289993251 is an equidigital number, since it uses as much as digits as its factorization.

479289993251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88179840, while the sum is 68.

The spelling of 479289993251 in words is "four hundred seventy-nine billion, two hundred eighty-nine million, nine hundred ninety-three thousand, two hundred fifty-one".