4042969897 has 2 divisors, whose sum is σ = 4042969898. Its totient is φ = 4042969896.

The previous prime is 4042969883. The next prime is 4042969901. The reversal of 4042969897 is 7989692404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3804915856 + 238054041 = 61684^2 + 15429^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042969897 - 2¹¹ = 4042967849 is a prime.

It is not a weakly prime, because it can be changed into another prime (4042969297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021484948 + 2021484949.

It is an arithmetic number, because the mean of its divisors is an integer number (2021484949).

Almost surely, 2^4042969897 is an apocalyptic number.

It is an amenable number.

4042969897 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042969897 is an equidigital number, since it uses as much as digits as its factorization.

4042969897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The square root of 4042969897 is about 63584.3526113147. The cubic root of 4042969897 is about 1593.0650234126.

The spelling of 4042969897 in words is "four billion, forty-two million, nine hundred sixty-nine thousand, eight hundred ninety-seven".