1804857662668 has 48 divisors (see below), whose sum is σ = 3349601851680. Its totient is φ = 847998104576.

The previous prime is 1804857662609. The next prime is 1804857662669. The reversal of 1804857662668 is 8662667584081.

It is a super-2 number, since 2×1804857662668² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1804857662669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130054146 + ... + 130068022.

It is an arithmetic number, because the mean of its divisors is an integer number (69783371910).

Almost surely, 2^{1804857662668} is an apocalyptic number.

It is an amenable number.

1804857662668 is a deficient number, since it is larger than the sum of its proper divisors (1544744189012).

1804857662668 is a wasteful number, since it uses less digits than its factorization.

1804857662668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16794 (or 16792 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 67.

The spelling of 1804857662668 in words is "one trillion, eight hundred four billion, eight hundred fifty-seven million, six hundred sixty-two thousand, six hundred sixty-eight".