2132686469 has 2 divisors, whose sum is σ = 2132686470. Its totient is φ = 2132686468.

The previous prime is 2132686421. The next prime is 2132686537. The reversal of 2132686469 is 9646862312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1961338369 + 171348100 = 44287^2 + 13090^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132686469 - 2¹² = 2132682373 is a prime.

It is a super-2 number, since 2×2132686469² = 9096703150111375922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132682469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066343234 + 1066343235.

It is an arithmetic number, because the mean of its divisors is an integer number (1066343235).

Almost surely, 2^2132686469 is an apocalyptic number.

It is an amenable number.

2132686469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132686469 is an equidigital number, since it uses as much as digits as its factorization.

2132686469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 47.

The square root of 2132686469 is about 46181.0184924499. The cubic root of 2132686469 is about 1287.1890536863.

The spelling of 2132686469 in words is "two billion, one hundred thirty-two million, six hundred eighty-six thousand, four hundred sixty-nine".