4631686979 has 2 divisors, whose sum is σ = 4631686980. Its totient is φ = 4631686978.

The previous prime is 4631686937. The next prime is 4631687033. The reversal of 4631686979 is 9796861364.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4631686979 - 2¹² = 4631682883 is a prime.

It is not a weakly prime, because it can be changed into another prime (4631686079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2315843489 + 2315843490.

It is an arithmetic number, because the mean of its divisors is an integer number (2315843490).

Almost surely, 2^4631686979 is an apocalyptic number.

4631686979 is a deficient number, since it is larger than the sum of its proper divisors (1).

4631686979 is an equidigital number, since it uses as much as digits as its factorization.

4631686979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11757312, while the sum is 59.

The square root of 4631686979 is about 68056.4984332870. The cubic root of 4631686979 is about 1666.9135120297.

The spelling of 4631686979 in words is "four billion, six hundred thirty-one million, six hundred eighty-six thousand, nine hundred seventy-nine".