2390043691973 has 20 divisors (see below), whose sum is σ = 2789107122060. Its totient is φ = 2047955906304.

The previous prime is 2390043691961. The next prime is 2390043692011. The reversal of 2390043691973 is 3791963400932.

It is a happy number.

2390043691973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1493191129444 + 896852562529 = 1221962^2 + 947023^2 .

It is not a de Polignac number, because 2390043691973 - 2³² = 2385748724677 is a prime.

It is a super-3 number, since 3×2390043691973³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390043691573) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7451711 + ... + 7765827.

It is an arithmetic number, because the mean of its divisors is an integer number (139455356103).

Almost surely, 2^{2390043691973} is an apocalyptic number.

It is an amenable number.

2390043691973 is a deficient number, since it is larger than the sum of its proper divisors (399063430087).

2390043691973 is an frugal number, since it uses more digits than its factorization.

2390043691973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317314 (or 317293 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 56.

The spelling of 2390043691973 in words is "two trillion, three hundred ninety billion, forty-three million, six hundred ninety-one thousand, nine hundred seventy-three".