845297792547 has 32 divisors (see below), whose sum is σ = 1257240398400. Its totient is φ = 501595648512.

The previous prime is 845297792531. The next prime is 845297792611. The reversal of 845297792547 is 745297792548.

It is not a de Polignac number, because 845297792547 - 2⁴ = 845297792531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (845297792147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390829 + ... + 1357697.

It is an arithmetic number, because the mean of its divisors is an integer number (39288762450).

Almost surely, 2^845297792547 is an apocalyptic number.

845297792547 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

845297792547 is a deficient number, since it is larger than the sum of its proper divisors (411942605853).

845297792547 is a wasteful number, since it uses less digits than its factorization.

845297792547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967687.

The product of its digits is 355622400, while the sum is 69.

Subtracting from 845297792547 its reverse (745297792548), we obtain a palindrome (99999999999).

The spelling of 845297792547 in words is "eight hundred forty-five billion, two hundred ninety-seven million, seven hundred ninety-two thousand, five hundred forty-seven".