628693396826 has 16 divisors (see below), whose sum is σ = 1033186347648. Its totient is φ = 284543244000.

The previous prime is 628693396801. The next prime is 628693396829.

628693396826 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×628693396826² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (628693396829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61318850 + ... + 61329101.

It is an arithmetic number, because the mean of its divisors is an integer number (64574146728).

Almost surely, 2^628693396826 is an apocalyptic number.

628693396826 is a deficient number, since it is larger than the sum of its proper divisors (404492950822).

628693396826 is a wasteful number, since it uses less digits than its factorization.

628693396826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122648197.

The product of its digits is 241864704, while the sum is 68.

The spelling of 628693396826 in words is "six hundred twenty-eight billion, six hundred ninety-three million, three hundred ninety-six thousand, eight hundred twenty-six".