84605845452816 has 80 divisors (see below), whose sum is σ = 222067279641600. Its totient is φ = 27751573422720.

The previous prime is 84605845452811. The next prime is 84605845452823. The reversal of 84605845452816 is 61825454850648.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84605845452811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21951516 + ... + 25516283.

It is an arithmetic number, because the mean of its divisors is an integer number (2775840995520).

Almost surely, 2^{84605845452816} is an apocalyptic number.

It is an amenable number.

84605845452816 is an abundant number, since it is smaller than the sum of its proper divisors (137461434188784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84605845452816 is a wasteful number, since it uses less digits than its factorization.

84605845452816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47468404 (or 47468398 counting only the distinct ones).

The product of its (nonzero) digits is 294912000, while the sum is 66.

The spelling of 84605845452816 in words is "eighty-four trillion, six hundred five billion, eight hundred forty-five million, four hundred fifty-two thousand, eight hundred sixteen".