628464400427 has 8 divisors (see below), whose sum is σ = 659579631264. Its totient is φ = 597665060608.

The previous prime is 628464400423. The next prime is 628464400457. The reversal of 628464400427 is 724004464826.

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

It is a cyclic number.

It is not a de Polignac number, because 628464400427 - 2² = 628464400423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628464400423) 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, 78968678 + ... + 78976635.

It is an arithmetic number, because the mean of its divisors is an integer number (82447453908).

Almost surely, 2^628464400427 is an apocalyptic number.

628464400427 is a deficient number, since it is larger than the sum of its proper divisors (31115230837).

628464400427 is a wasteful number, since it uses less digits than its factorization.

628464400427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157945509.

The product of its (nonzero) digits is 2064384, while the sum is 47.

The spelling of 628464400427 in words is "six hundred twenty-eight billion, four hundred sixty-four million, four hundred thousand, four hundred twenty-seven".