85101447251 has 2 divisors, whose sum is σ = 85101447252. Its totient is φ = 85101447250.

The previous prime is 85101447139. The next prime is 85101447259. The reversal of 85101447251 is 15274410158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85101447251 - 2³⁰ = 84027705427 is a prime.

It is not a weakly prime, because it can be changed into another prime (85101447259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42550723625 + 42550723626.

It is an arithmetic number, because the mean of its divisors is an integer number (42550723626).

Almost surely, 2^85101447251 is an apocalyptic number.

85101447251 is a deficient number, since it is larger than the sum of its proper divisors (1).

85101447251 is an equidigital number, since it uses as much as digits as its factorization.

85101447251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44800, while the sum is 38.

The spelling of 85101447251 in words is "eighty-five billion, one hundred one million, four hundred forty-seven thousand, two hundred fifty-one".