83870687019 has 32 divisors (see below), whose sum is σ = 128060227584. Its totient is φ = 47829751200.

The previous prime is 83870687009. The next prime is 83870687027. The reversal of 83870687019 is 91078607838.

It is not a de Polignac number, because 83870687019 - 2⁴ = 83870687003 is a prime.

It is a super-2 number, since 2×83870687019² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83870687019.

It is not an unprimeable number, because it can be changed into a prime (83870687009) 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 31 ways as a sum of consecutive naturals, for example, 31493482 + ... + 31496144.

It is an arithmetic number, because the mean of its divisors is an integer number (4001882112).

Almost surely, 2^83870687019 is an apocalyptic number.

83870687019 is a deficient number, since it is larger than the sum of its proper divisors (44189540565).

83870687019 is a wasteful number, since it uses less digits than its factorization.

83870687019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127.

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 83870687019 in words is "eighty-three billion, eight hundred seventy million, six hundred eighty-seven thousand, nineteen".