628419542257 has 16 divisors (see below), whose sum is σ = 680942610432. Its totient is φ = 576495397440.

The previous prime is 628419542221. The next prime is 628419542263. The reversal of 628419542257 is 752245914826.

It is a cyclic number.

It is not a de Polignac number, because 628419542257 - 2²⁷ = 628285324529 is a prime.

It is a super-2 number, since 2×628419542257² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 628419542198 and 628419542207.

It is not an unprimeable number, because it can be changed into a prime (628419542287) 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 15 ways as a sum of consecutive naturals, for example, 12612528 + ... + 12662254.

It is an arithmetic number, because the mean of its divisors is an integer number (42558913152).

Almost surely, 2^628419542257 is an apocalyptic number.

It is an amenable number.

628419542257 is a deficient number, since it is larger than the sum of its proper divisors (52523068175).

628419542257 is a wasteful number, since it uses less digits than its factorization.

628419542257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55728.

The product of its digits is 9676800, while the sum is 55.

The spelling of 628419542257 in words is "six hundred twenty-eight billion, four hundred nineteen million, five hundred forty-two thousand, two hundred fifty-seven".