83072878919 has 2 divisors, whose sum is σ = 83072878920. Its totient is φ = 83072878918.

The previous prime is 83072878873. The next prime is 83072878921. The reversal of 83072878919 is 91987827038.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83072878919 - 2¹² = 83072874823 is a prime.

It is a super-2 number, since 2×83072878919² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 83072878921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83072878219) 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 as a sum of consecutive naturals, namely, 41536439459 + 41536439460.

It is an arithmetic number, because the mean of its divisors is an integer number (41536439460).

Almost surely, 2^83072878919 is an apocalyptic number.

83072878919 is a deficient number, since it is larger than the sum of its proper divisors (1).

83072878919 is an equidigital number, since it uses as much as digits as its factorization.

83072878919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 62.

The spelling of 83072878919 in words is "eighty-three billion, seventy-two million, eight hundred seventy-eight thousand, nine hundred nineteen".