8138690514 has 16 divisors (see below), whose sum is σ = 18085979040. Its totient is φ = 2712896820.

The previous prime is 8138690509. The next prime is 8138690519. The reversal of 8138690514 is 4150968318.

It is an interprime number because it is at equal distance from previous prime (8138690509) and next prime (8138690519).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8138690514.

It is not an unprimeable number, because it can be changed into a prime (8138690519) 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, 75358192 + ... + 75358299.

It is an arithmetic number, because the mean of its divisors is an integer number (1130373690).

Almost surely, 2^8138690514 is an apocalyptic number.

8138690514 is an abundant number, since it is smaller than the sum of its proper divisors (9947288526).

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

8138690514 is a wasteful number, since it uses less digits than its factorization.

8138690514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150716502 (or 150716496 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 8138690514 is about 90214.6912315284. The cubic root of 8138690514 is about 2011.4913903521.

The spelling of 8138690514 in words is "eight billion, one hundred thirty-eight million, six hundred ninety thousand, five hundred fourteen".