2042821910739 has 16 divisors (see below), whose sum is σ = 2742200258720. Its totient is φ = 1352669310720.

The previous prime is 2042821910729. The next prime is 2042821910821. The reversal of 2042821910739 is 9370191282402.

It is not a de Polignac number, because 2042821910739 - 2⁵ = 2042821910707 is a prime.

It is a super-2 number, since 2×2042821910739² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042821910729) 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, 327177 + ... + 2047605.

It is an arithmetic number, because the mean of its divisors is an integer number (171387516170).

Almost surely, 2^{2042821910739} is an apocalyptic number.

2042821910739 is a deficient number, since it is larger than the sum of its proper divisors (699378347981).

2042821910739 is a wasteful number, since it uses less digits than its factorization.

2042821910739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723110.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 2042821910739 in words is "two trillion, forty-two billion, eight hundred twenty-one million, nine hundred ten thousand, seven hundred thirty-nine".