6261288469 has 2 divisors, whose sum is σ = 6261288470. Its totient is φ = 6261288468.

The previous prime is 6261288409. The next prime is 6261288493. The reversal of 6261288469 is 9648821626.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5000328369 + 1260960100 = 70713^2 + 35510^2 .

It is a cyclic number.

It is not a de Polignac number, because 6261288469 - 2⁹ = 6261287957 is a prime.

It is a super-2 number, since 2×6261288469² = 78407466584064727922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6261288409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3130644234 + 3130644235.

It is an arithmetic number, because the mean of its divisors is an integer number (3130644235).

Almost surely, 2^6261288469 is an apocalyptic number.

It is an amenable number.

6261288469 is a deficient number, since it is larger than the sum of its proper divisors (1).

6261288469 is an equidigital number, since it uses as much as digits as its factorization.

6261288469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 52.

The square root of 6261288469 is about 79128.3038425569. The cubic root of 6261288469 is about 1843.1240709973.

The spelling of 6261288469 in words is "six billion, two hundred sixty-one million, two hundred eighty-eight thousand, four hundred sixty-nine".