8138293514 has 8 divisors (see below), whose sum is σ = 13146474180. Its totient is φ = 3756135456.

The previous prime is 8138293511. The next prime is 8138293547. The reversal of 8138293514 is 4153928318.

It can be written as a sum of positive squares in 2 ways, for example, as 8041605625 + 96687889 = 89675^2 + 9833^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8138293511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156505619 + ... + 156505670.

Almost surely, 2^8138293514 is an apocalyptic number.

8138293514 is a deficient number, since it is larger than the sum of its proper divisors (5008180666).

8138293514 is a wasteful number, since it uses less digits than its factorization.

8138293514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313011304.

The product of its digits is 207360, while the sum is 44.

The square root of 8138293514 is about 90212.4908978795. The cubic root of 8138293514 is about 2011.4586834088.

The spelling of 8138293514 in words is "eight billion, one hundred thirty-eight million, two hundred ninety-three thousand, five hundred fourteen".