83681313715 has 8 divisors (see below), whose sum is σ = 102063766608. Its totient is φ = 65847590880.

The previous prime is 83681313713. The next prime is 83681313719. The reversal of 83681313715 is 51731318638.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83681313715 - 2¹ = 83681313713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83681313713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137182177 + ... + 137182786.

It is an arithmetic number, because the mean of its divisors is an integer number (12757970826).

Almost surely, 2^83681313715 is an apocalyptic number.

83681313715 is a deficient number, since it is larger than the sum of its proper divisors (18382452893).

83681313715 is a wasteful number, since it uses less digits than its factorization.

83681313715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274365029.

The product of its digits is 362880, while the sum is 46.

The spelling of 83681313715 in words is "eighty-three billion, six hundred eighty-one million, three hundred thirteen thousand, seven hundred fifteen".