4019902969 has 2 divisors, whose sum is σ = 4019902970. Its totient is φ = 4019902968.

The previous prime is 4019902967. The next prime is 4019902973. The reversal of 4019902969 is 9692099104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3738099600 + 281803369 = 61140^2 + 16787^2 .

It is a cyclic number.

It is not a de Polignac number, because 4019902969 - 2¹ = 4019902967 is a prime.

It is a super-2 number, since 2×4019902969² = 32319239760350029922, which contains 22 as substring.

Together with 4019902967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4019902967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2009951484 + 2009951485.

It is an arithmetic number, because the mean of its divisors is an integer number (2009951485).

Almost surely, 2^4019902969 is an apocalyptic number.

It is an amenable number.

4019902969 is a deficient number, since it is larger than the sum of its proper divisors (1).

4019902969 is an equidigital number, since it uses as much as digits as its factorization.

4019902969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 4019902969 is about 63402.7047451447. The cubic root of 4019902969 is about 1590.0295300608.

The spelling of 4019902969 in words is "four billion, nineteen million, nine hundred two thousand, nine hundred sixty-nine".