628719062920 has 64 divisors (see below), whose sum is σ = 1524499567920. Its totient is φ = 231980150784.

The previous prime is 628719062897. The next prime is 628719062921. The reversal of 628719062920 is 29260917826.

It can be written as a sum of positive squares in 8 ways, for example, as 96510878244 + 532208184676 = 310662^2 + 729526^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (628719062921) 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 15 ways as a sum of consecutive naturals, for example, 323292 + ... + 1167028.

Almost surely, 2^628719062920 is an apocalyptic number.

It is an amenable number.

628719062920 is an abundant number, since it is smaller than the sum of its proper divisors (895780505000).

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

628719062920 is a wasteful number, since it uses less digits than its factorization.

628719062920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845194 (or 845190 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 628719062920 in words is "six hundred twenty-eight billion, seven hundred nineteen million, sixty-two thousand, nine hundred twenty".