83127987315 has 16 divisors (see below), whose sum is σ = 147783088800. Its totient is φ = 44334926496.

The previous prime is 83127987259. The next prime is 83127987317. The reversal of 83127987315 is 51378972138.

It is a happy number.

83127987315 is a `hidden beast` number, since 8 + 312 + 7 + 9 + 8 + 7 + 315 = 666.

It is not a de Polignac number, because 83127987315 - 2¹² = 83127983219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83127987317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307881300 + ... + 307881569.

It is an arithmetic number, because the mean of its divisors is an integer number (9236443050).

Almost surely, 2^83127987315 is an apocalyptic number.

83127987315 is a deficient number, since it is larger than the sum of its proper divisors (64655101485).

83127987315 is a wasteful number, since it uses less digits than its factorization.

83127987315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615762883 (or 615762877 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The spelling of 83127987315 in words is "eighty-three billion, one hundred twenty-seven million, nine hundred eighty-seven thousand, three hundred fifteen".