83415128140427 has 2 divisors, whose sum is σ = 83415128140428. Its totient is φ = 83415128140426.

The previous prime is 83415128140417. The next prime is 83415128140433. The reversal of 83415128140427 is 72404182151438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83415128140427 - 2¹⁴ = 83415128124043 is a prime.

It is not a weakly prime, because it can be changed into another prime (83415128140417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41707564070213 + 41707564070214.

It is an arithmetic number, because the mean of its divisors is an integer number (41707564070214).

Almost surely, 2^{83415128140427} is an apocalyptic number.

83415128140427 is a deficient number, since it is larger than the sum of its proper divisors (1).

83415128140427 is an equidigital number, since it uses as much as digits as its factorization.

83415128140427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 83415128140427 in words is "eighty-three trillion, four hundred fifteen billion, one hundred twenty-eight million, one hundred forty thousand, four hundred twenty-seven".