8638414457 has 8 divisors (see below), whose sum is σ = 8883854016. Its totient is φ = 8393604912.

The previous prime is 8638414387. The next prime is 8638414471. The reversal of 8638414457 is 7544148368.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8638414457 - 2³² = 4343447161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8638410457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129623 + ... + 184604.

It is an arithmetic number, because the mean of its divisors is an integer number (1110481752).

Almost surely, 2^8638414457 is an apocalyptic number.

It is an amenable number.

8638414457 is a deficient number, since it is larger than the sum of its proper divisors (245439559).

8638414457 is a wasteful number, since it uses less digits than its factorization.

8638414457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315007.

The product of its digits is 2580480, while the sum is 50.

The square root of 8638414457 is about 92943.0710542749. The cubic root of 8638414457 is about 2051.8456079446.

The spelling of 8638414457 in words is "eight billion, six hundred thirty-eight million, four hundred fourteen thousand, four hundred fifty-seven".