628947597487 has 8 divisors (see below), whose sum is σ = 708257705472. Its totient is φ = 553326331800.

The previous prime is 628947597463. The next prime is 628947597497. The reversal of 628947597487 is 784795749826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-628947597487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628947597497) 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, 922210213 + ... + 922210894.

It is an arithmetic number, because the mean of its divisors is an integer number (88532213184).

Almost surely, 2^628947597487 is an apocalyptic number.

628947597487 is a deficient number, since it is larger than the sum of its proper divisors (79310107985).

628947597487 is a wasteful number, since it uses less digits than its factorization.

628947597487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844421149.

The product of its digits is 1706987520, while the sum is 76.

The spelling of 628947597487 in words is "six hundred twenty-eight billion, nine hundred forty-seven million, five hundred ninety-seven thousand, four hundred eighty-seven".