627658479945 has 48 divisors (see below), whose sum is σ = 1250307826560. Its totient is φ = 285326606592.

The previous prime is 627658479907. The next prime is 627658479949. The reversal of 627658479945 is 549974856726.

627658479945 is a `hidden beast` number, since 6 + 2 + 7 + 65 + 8 + 479 + 94 + 5 = 666.

It is not a de Polignac number, because 627658479945 - 2¹³ = 627658471753 is a prime.

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 in 47 ways as a sum of consecutive naturals, for example, 5509444 + ... + 5622213.

It is an arithmetic number, because the mean of its divisors is an integer number (26048079720).

Almost surely, 2^627658479945 is an apocalyptic number.

It is an amenable number.

627658479945 is a deficient number, since it is larger than the sum of its proper divisors (622649346615).

627658479945 is a wasteful number, since it uses less digits than its factorization.

627658479945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11131854 (or 11131851 counting only the distinct ones).

The product of its digits is 914457600, while the sum is 72.

The spelling of 627658479945 in words is "six hundred twenty-seven billion, six hundred fifty-eight million, four hundred seventy-nine thousand, nine hundred forty-five".