57821220662338 has 16 divisors (see below), whose sum is σ = 99122214441024. Its totient is φ = 24780492671760.

The previous prime is 57821220662327. The next prime is 57821220662339. The reversal of 57821220662338 is 83326602212875.

It is not an unprimeable number, because it can be changed into a prime (57821220662339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12206628 + ... + 16267888.

It is an arithmetic number, because the mean of its divisors is an integer number (6195138402564).

Almost surely, 2^{57821220662338} is an apocalyptic number.

57821220662338 is a deficient number, since it is larger than the sum of its proper divisors (41300993778686).

57821220662338 is a wasteful number, since it uses less digits than its factorization.

57821220662338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5078217.

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 57821220662338 in words is "fifty-seven trillion, eight hundred twenty-one billion, two hundred twenty million, six hundred sixty-two thousand, three hundred thirty-eight".