627658479946 has 4 divisors (see below), whose sum is σ = 941487719922. Its totient is φ = 313829239972.

The previous prime is 627658479907. The next prime is 627658479949. The reversal of 627658479946 is 649974856726.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 444007662921 + 183650817025 = 666339^2 + 428545^2 .

It is not an unprimeable number, because it can be changed into a prime (627658479949) 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, 156914619985 + ... + 156914619988.

Almost surely, 2^627658479946 is an apocalyptic number.

627658479946 is a deficient number, since it is larger than the sum of its proper divisors (313829239976).

627658479946 is a wasteful number, since it uses less digits than its factorization.

627658479946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313829239975.

The product of its digits is 1097349120, while the sum is 73.

The spelling of 627658479946 in words is "six hundred twenty-seven billion, six hundred fifty-eight million, four hundred seventy-nine thousand, nine hundred forty-six".