1868415330973 has 4 divisors (see below), whose sum is σ = 1870943633920. Its totient is φ = 1865887028028.

The previous prime is 1868415330967. The next prime is 1868415331001. The reversal of 1868415330973 is 3790335148681.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1868415330973 - 2¹⁷ = 1868415199901 is a prime.

It is a super-4 number, since 4×1868415330973⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868415330673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264150365 + ... + 1264151842.

It is an arithmetic number, because the mean of its divisors is an integer number (467735908480).

Almost surely, 2^{1868415330973} is an apocalyptic number.

It is an amenable number.

1868415330973 is a deficient number, since it is larger than the sum of its proper divisors (2528302947).

1868415330973 is an equidigital number, since it uses as much as digits as its factorization.

1868415330973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528302946.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 1868415330973 in words is "one trillion, eight hundred sixty-eight billion, four hundred fifteen million, three hundred thirty thousand, nine hundred seventy-three".