1904589371993 has 36 divisors (see below), whose sum is σ = 2437844731056. Its totient is φ = 1482524089200.

The previous prime is 1904589371987. The next prime is 1904589372017. The reversal of 1904589371993 is 3991739854091.

It is not a de Polignac number, because 1904589371993 - 2⁴⁰ = 805077744217 is a prime.

It is a super-3 number, since 3×1904589371993³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1904589371983) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5445158 + ... + 5784368.

It is an arithmetic number, because the mean of its divisors is an integer number (67717909196).

Almost surely, 2^{1904589371993} is an apocalyptic number.

It is an amenable number.

1904589371993 is a deficient number, since it is larger than the sum of its proper divisors (533255359063).

1904589371993 is a wasteful number, since it uses less digits than its factorization.

1904589371993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340194 (or 340176 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 68.

The spelling of 1904589371993 in words is "one trillion, nine hundred four billion, five hundred eighty-nine million, three hundred seventy-one thousand, nine hundred ninety-three".