85116880947 has 48 divisors (see below), whose sum is σ = 137350643712. Its totient is φ = 46698301440.

The previous prime is 85116880897. The next prime is 85116880957. The reversal of 85116880947 is 74908861158.

It is not a de Polignac number, because 85116880947 - 2¹⁸ = 85116618803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85116880957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 505203 + ... + 652275.

It is an arithmetic number, because the mean of its divisors is an integer number (2861471744).

Almost surely, 2^85116880947 is an apocalyptic number.

85116880947 is a deficient number, since it is larger than the sum of its proper divisors (52233762765).

85116880947 is a wasteful number, since it uses less digits than its factorization.

85116880947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147248 (or 147241 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 57.

The spelling of 85116880947 in words is "eighty-five billion, one hundred sixteen million, eight hundred eighty thousand, nine hundred forty-seven".