8139646146 has 16 divisors (see below), whose sum is σ = 16502297184. Its totient is φ = 2676047904.

The previous prime is 8139646133. The next prime is 8139646159. The reversal of 8139646146 is 6416469318.

It is an interprime number because it is at equal distance from previous prime (8139646133) and next prime (8139646159).

It is a junction number, because it is equal to n+sod(n) for n = 8139646095 and 8139646104.

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, 9291396 + ... + 9292271.

It is an arithmetic number, because the mean of its divisors is an integer number (1031393574).

Almost surely, 2^8139646146 is an apocalyptic number.

8139646146 is an abundant number, since it is smaller than the sum of its proper divisors (8362651038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8139646146 is a wasteful number, since it uses less digits than its factorization.

8139646146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18583745.

The product of its digits is 746496, while the sum is 48.

The square root of 8139646146 is about 90219.9875083121. The cubic root of 8139646146 is about 2011.5701159696.

The spelling of 8139646146 in words is "eight billion, one hundred thirty-nine million, six hundred forty-six thousand, one hundred forty-six".