83491463765 has 8 divisors (see below), whose sum is σ = 102633409368. Its totient is φ = 65164069120.

The previous prime is 83491463753. The next prime is 83491463767. The reversal of 83491463765 is 56736419438.

It can be written as a sum of positive squares in 4 ways, for example, as 6993307876 + 76498155889 = 83626^2 + 276583^2 .

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

It is not a de Polignac number, because 83491463765 - 2⁴ = 83491463749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83491463765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83491463767) 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, 203637512 + ... + 203637921.

It is an arithmetic number, because the mean of its divisors is an integer number (12829176171).

Almost surely, 2^83491463765 is an apocalyptic number.

It is an amenable number.

83491463765 is a deficient number, since it is larger than the sum of its proper divisors (19141945603).

83491463765 is a wasteful number, since it uses less digits than its factorization.

83491463765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407275479.

The product of its digits is 13063680, while the sum is 56.

The spelling of 83491463765 in words is "eighty-three billion, four hundred ninety-one million, four hundred sixty-three thousand, seven hundred sixty-five".