2042653969 has 2 divisors, whose sum is σ = 2042653970. Its totient is φ = 2042653968.

The previous prime is 2042653967. The next prime is 2042653999. The reversal of 2042653969 is 9693562402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1841439744 + 201214225 = 42912^2 + 14185^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042653969 - 2¹ = 2042653967 is a prime.

It is a super-2 number, since 2×2042653969² = 8344870474142905922, which contains 22 as substring.

Together with 2042653967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2042653967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021326984 + 1021326985.

It is an arithmetic number, because the mean of its divisors is an integer number (1021326985).

Almost surely, 2^2042653969 is an apocalyptic number.

It is an amenable number.

2042653969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042653969 is an equidigital number, since it uses as much as digits as its factorization.

2042653969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 46.

The square root of 2042653969 is about 45195.7295438408. The cubic root of 2042653969 is about 1268.8148923461.

The spelling of 2042653969 in words is "two billion, forty-two million, six hundred fifty-three thousand, nine hundred sixty-nine".