8678243457 has 36 divisors (see below), whose sum is σ = 13745671680. Its totient is φ = 5272783776.

The previous prime is 8678243443. The next prime is 8678243471. The reversal of 8678243457 is 7543428768.

8678243457 is a `hidden beast` number, since 86 + 7 + 82 + 434 + 57 = 666.

It is an interprime number because it is at equal distance from previous prime (8678243443) and next prime (8678243471).

It is not a de Polignac number, because 8678243457 - 2²³ = 8669854849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8678243437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 84048 + ... + 156270.

Almost surely, 2^8678243457 is an apocalyptic number.

It is an amenable number.

8678243457 is a deficient number, since it is larger than the sum of its proper divisors (5067428223).

8678243457 is a wasteful number, since it uses less digits than its factorization.

8678243457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72334 (or 72318 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The square root of 8678243457 is about 93157.0902132522. The cubic root of 8678243457 is about 2054.9942443940.

The spelling of 8678243457 in words is "eight billion, six hundred seventy-eight million, two hundred forty-three thousand, four hundred fifty-seven".