8516667478 has 16 divisors (see below), whose sum is σ = 13943450304. Its totient is φ = 3869244360.

The previous prime is 8516667431. The next prime is 8516667487. The reversal of 8516667478 is 8747666158.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53700 + ... + 141127.

It is an arithmetic number, because the mean of its divisors is an integer number (871465644).

Almost surely, 2^8516667478 is an apocalyptic number.

8516667478 is a deficient number, since it is larger than the sum of its proper divisors (5426782826).

8516667478 is a wasteful number, since it uses less digits than its factorization.

8516667478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196827.

The product of its digits is 13547520, while the sum is 58.

The square root of 8516667478 is about 92285.7923951461. The cubic root of 8516667478 is about 2042.1606191585.

The spelling of 8516667478 in words is "eight billion, five hundred sixteen million, six hundred sixty-seven thousand, four hundred seventy-eight".