1969812433 has 2 divisors, whose sum is σ = 1969812434. Its totient is φ = 1969812432.

The previous prime is 1969812431. The next prime is 1969812451. The reversal of 1969812433 is 3342189691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1722914064 + 246898369 = 41508^2 + 15713^2 .

It is a cyclic number.

It is not a de Polignac number, because 1969812433 - 2¹ = 1969812431 is a prime.

It is a super-2 number, since 2×1969812433² = 7760322042402758978, which contains 22 as substring.

Together with 1969812431, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1969812431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984906216 + 984906217.

It is an arithmetic number, because the mean of its divisors is an integer number (984906217).

Almost surely, 2^1969812433 is an apocalyptic number.

It is an amenable number.

1969812433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1969812433 is an equidigital number, since it uses as much as digits as its factorization.

1969812433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 1969812433 is about 44382.5690220834. The cubic root of 1969812433 is about 1253.5498947610.

It can be divided in two parts, 19698 and 12433, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 1969812433 in words is "one billion, nine hundred sixty-nine million, eight hundred twelve thousand, four hundred thirty-three".