1628457419918 has 16 divisors (see below), whose sum is σ = 2792380106880. Its totient is φ = 697725618936.

The previous prime is 1628457419893. The next prime is 1628457420041. The reversal of 1628457419918 is 8199147548261.

It is a congruent number.

It is an unprimeable number.

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, 15337196 + ... + 15443007.

It is an arithmetic number, because the mean of its divisors is an integer number (174523756680).

Almost surely, 2^{1628457419918} is an apocalyptic number.

1628457419918 is a deficient number, since it is larger than the sum of its proper divisors (1163922686962).

1628457419918 is a wasteful number, since it uses less digits than its factorization.

1628457419918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30783991.

The product of its digits is 34836480, while the sum is 65.

The spelling of 1628457419918 in words is "one trillion, six hundred twenty-eight billion, four hundred fifty-seven million, four hundred nineteen thousand, nine hundred eighteen".