628498635642 has 32 divisors (see below), whose sum is σ = 1419559767360. Its totient is φ = 206065125360.

The previous prime is 628498635641. The next prime is 628498635649. The reversal of 628498635642 is 246536894826.

It is a happy number.

628498635642 is a `hidden beast` number, since 6 + 2 + 8 + 4 + 9 + 8 + 63 + 564 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 628498635642.

It is not an unprimeable number, because it can be changed into a prime (628498635641) 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 15 ways as a sum of consecutive naturals, for example, 95397228 + ... + 95403815.

It is an arithmetic number, because the mean of its divisors is an integer number (44361242730).

Almost surely, 2^628498635642 is an apocalyptic number.

628498635642 is an abundant number, since it is smaller than the sum of its proper divisors (791061131718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628498635642 is a wasteful number, since it uses less digits than its factorization.

628498635642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190801115 (or 190801109 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 63.

The spelling of 628498635642 in words is "six hundred twenty-eight billion, four hundred ninety-eight million, six hundred thirty-five thousand, six hundred forty-two".