628751139297 has 4 divisors (see below), whose sum is σ = 838334852400. Its totient is φ = 419167426196.

The previous prime is 628751139293. The next prime is 628751139307. The reversal of 628751139297 is 792931157826.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 628751139297 - 2² = 628751139293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628751139297.

It is not an unprimeable number, because it can be changed into a prime (628751139293) 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 3 ways as a sum of consecutive naturals, for example, 104791856547 + ... + 104791856552.

It is an arithmetic number, because the mean of its divisors is an integer number (209583713100).

Almost surely, 2^628751139297 is an apocalyptic number.

It is an amenable number.

628751139297 is a deficient number, since it is larger than the sum of its proper divisors (209583713103).

628751139297 is a wasteful number, since it uses less digits than its factorization.

628751139297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209583713102.

The product of its digits is 11430720, while the sum is 60.

The spelling of 628751139297 in words is "six hundred twenty-eight billion, seven hundred fifty-one million, one hundred thirty-nine thousand, two hundred ninety-seven".