2642662469 has 2 divisors, whose sum is σ = 2642662470. Its totient is φ = 2642662468.

The previous prime is 2642662457. The next prime is 2642662483. The reversal of 2642662469 is 9642662462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1895296225 + 747366244 = 43535^2 + 27338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2642662469 is a prime.

It is a super-2 number, since 2×2642662469² = 13967329850122351922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2642662499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321331234 + 1321331235.

It is an arithmetic number, because the mean of its divisors is an integer number (1321331235).

Almost surely, 2^2642662469 is an apocalyptic number.

It is an amenable number.

2642662469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642662469 is an equidigital number, since it uses as much as digits as its factorization.

2642662469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 47.

The square root of 2642662469 is about 51406.8329018624. The cubic root of 2642662469 is about 1382.5491057488.

The spelling of 2642662469 in words is "two billion, six hundred forty-two million, six hundred sixty-two thousand, four hundred sixty-nine".