85752297947 has 2 divisors, whose sum is σ = 85752297948. Its totient is φ = 85752297946.

The previous prime is 85752297937. The next prime is 85752297989. The reversal of 85752297947 is 74979225758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85752297947 - 2⁸ = 85752297691 is a prime.

It is not a weakly prime, because it can be changed into another prime (85752297937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42876148973 + 42876148974.

It is an arithmetic number, because the mean of its divisors is an integer number (42876148974).

Almost surely, 2^85752297947 is an apocalyptic number.

85752297947 is a deficient number, since it is larger than the sum of its proper divisors (1).

85752297947 is an equidigital number, since it uses as much as digits as its factorization.

85752297947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88905600, while the sum is 65.

The spelling of 85752297947 in words is "eighty-five billion, seven hundred fifty-two million, two hundred ninety-seven thousand, nine hundred forty-seven".