627658479907 has 2 divisors, whose sum is σ = 627658479908. Its totient is φ = 627658479906.

The previous prime is 627658479841. The next prime is 627658479949. The reversal of 627658479907 is 709974856726.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 627658479907 - 2³¹ = 625510996259 is a prime.

It is not a weakly prime, because it can be changed into another prime (627658479977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313829239953 + 313829239954.

It is an arithmetic number, because the mean of its divisors is an integer number (313829239954).

Almost surely, 2^627658479907 is an apocalyptic number.

627658479907 is a deficient number, since it is larger than the sum of its proper divisors (1).

627658479907 is an equidigital number, since it uses as much as digits as its factorization.

627658479907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320060160, while the sum is 70.

The spelling of 627658479907 in words is "six hundred twenty-seven billion, six hundred fifty-eight million, four hundred seventy-nine thousand, nine hundred seven".