84349616065 has 32 divisors (see below), whose sum is σ = 119898156672. Its totient is φ = 56626257600.

The previous prime is 84349616059. The next prime is 84349616077. The reversal of 84349616065 is 56061694348.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-84349616065 is a prime.

It is a super-2 number, since 2×84349616065² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 400971 + ... + 574000.

It is an arithmetic number, because the mean of its divisors is an integer number (3746817396).

Almost surely, 2^84349616065 is an apocalyptic number.

It is an amenable number.

84349616065 is a deficient number, since it is larger than the sum of its proper divisors (35548540607).

84349616065 is a wasteful number, since it uses less digits than its factorization.

84349616065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975022 (or 975000 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 84349616065 in words is "eighty-four billion, three hundred forty-nine million, six hundred sixteen thousand, sixty-five".