2039511921 has 16 divisors (see below), whose sum is σ = 2774896704. Its totient is φ = 1331979584.

The previous prime is 2039511893. The next prime is 2039511989. The reversal of 2039511921 is 1291159302.

It is a cyclic number.

It is not a de Polignac number, because 2039511921 - 2⁶ = 2039511857 is a prime.

It is a super-2 number, since 2×2039511921² = 8319217751802220482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2039511121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98170 + ... + 117116.

It is an arithmetic number, because the mean of its divisors is an integer number (173431044).

Almost surely, 2^2039511921 is an apocalyptic number.

It is an amenable number.

2039511921 is a deficient number, since it is larger than the sum of its proper divisors (735384783).

2039511921 is a wasteful number, since it uses less digits than its factorization.

2039511921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19680.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 2039511921 is about 45160.9557139793. The cubic root of 2039511921 is about 1268.1639869993.

The spelling of 2039511921 in words is "two billion, thirty-nine million, five hundred eleven thousand, nine hundred twenty-one".