6863400469 has 2 divisors, whose sum is σ = 6863400470. Its totient is φ = 6863400468.

The previous prime is 6863400443. The next prime is 6863400487. The reversal of 6863400469 is 9640043686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3940700625 + 2922699844 = 62775^2 + 54062^2 .

It is a cyclic number.

It is not a de Polignac number, because 6863400469 - 2²³ = 6855011861 is a prime.

It is a super-2 number, since 2×6863400469² = 94212531995738839922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6863400499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3431700234 + 3431700235.

It is an arithmetic number, because the mean of its divisors is an integer number (3431700235).

Almost surely, 2^6863400469 is an apocalyptic number.

It is an amenable number.

6863400469 is a deficient number, since it is larger than the sum of its proper divisors (1).

6863400469 is an equidigital number, since it uses as much as digits as its factorization.

6863400469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 46.

The square root of 6863400469 is about 82845.6424261409. The cubic root of 6863400469 is about 1900.4062352981.

The spelling of 6863400469 in words is "six billion, eight hundred sixty-three million, four hundred thousand, four hundred sixty-nine".