64628482646 has 64 divisors (see below), whose sum is σ = 120083378688. Its totient is φ = 25402975488.

The previous prime is 64628482637. The next prime is 64628482651.

64628482646 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64628482646² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64628482591 and 64628482600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23873225 + ... + 23875931.

It is an arithmetic number, because the mean of its divisors is an integer number (1876302792).

Almost surely, 2^64628482646 is an apocalyptic number.

64628482646 is a deficient number, since it is larger than the sum of its proper divisors (55454896042).

64628482646 is a wasteful number, since it uses less digits than its factorization.

64628482646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525.

The product of its digits is 21233664, while the sum is 56.

The spelling of 64628482646 in words is "sixty-four billion, six hundred twenty-eight million, four hundred eighty-two thousand, six hundred forty-six".