2031869969 has 2 divisors, whose sum is σ = 2031869970. Its totient is φ = 2031869968.

The previous prime is 2031869929. The next prime is 2031869989. The reversal of 2031869969 is 9699681302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1231659025 + 800210944 = 35095^2 + 28288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031869969 is a prime.

It is a super-2 number, since 2×2031869969² = 8256991141848121922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2031869969.

It is not a weakly prime, because it can be changed into another prime (2031869929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015934984 + 1015934985.

It is an arithmetic number, because the mean of its divisors is an integer number (1015934985).

Almost surely, 2^2031869969 is an apocalyptic number.

It is an amenable number.

2031869969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031869969 is an equidigital number, since it uses as much as digits as its factorization.

2031869969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The square root of 2031869969 is about 45076.2683570856. The cubic root of 2031869969 is about 1266.5780883195.

The spelling of 2031869969 in words is "two billion, thirty-one million, eight hundred sixty-nine thousand, nine hundred sixty-nine".