84681749737 has 32 divisors (see below), whose sum is σ = 93398466560. Its totient is φ = 76304954880.

The previous prime is 84681749701. The next prime is 84681749791. The reversal of 84681749737 is 73794718648.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84681749737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84681749797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85450312 + ... + 85451302.

It is an arithmetic number, because the mean of its divisors is an integer number (2918702080).

Almost surely, 2^84681749737 is an apocalyptic number.

It is an amenable number.

84681749737 is a deficient number, since it is larger than the sum of its proper divisors (8716716823).

84681749737 is a wasteful number, since it uses less digits than its factorization.

84681749737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913.

The product of its digits is 56899584, while the sum is 64.

The spelling of 84681749737 in words is "eighty-four billion, six hundred eighty-one million, seven hundred forty-nine thousand, seven hundred thirty-seven".