628840308007 has 2 divisors, whose sum is σ = 628840308008. Its totient is φ = 628840308006.

The previous prime is 628840307983. The next prime is 628840308079. The reversal of 628840308007 is 700803048826.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628840308007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628840368007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314420154003 + 314420154004.

It is an arithmetic number, because the mean of its divisors is an integer number (314420154004).

Almost surely, 2^628840308007 is an apocalyptic number.

628840308007 is a deficient number, since it is larger than the sum of its proper divisors (1).

628840308007 is an equidigital number, since it uses as much as digits as its factorization.

628840308007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 628840308007 in words is "six hundred twenty-eight billion, eight hundred forty million, three hundred eight thousand, seven".