83415215867 has 2 divisors, whose sum is σ = 83415215868. Its totient is φ = 83415215866.

The previous prime is 83415215843. The next prime is 83415215881. The reversal of 83415215867 is 76851251438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83415215867 - 2¹⁸ = 83414953723 is a prime.

It is not a weakly prime, because it can be changed into another prime (83415215887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41707607933 + 41707607934.

It is an arithmetic number, because the mean of its divisors is an integer number (41707607934).

Almost surely, 2^83415215867 is an apocalyptic number.

83415215867 is a deficient number, since it is larger than the sum of its proper divisors (1).

83415215867 is an equidigital number, since it uses as much as digits as its factorization.

83415215867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 50.

The spelling of 83415215867 in words is "eighty-three billion, four hundred fifteen million, two hundred fifteen thousand, eight hundred sixty-seven".