83117730877513 has 4 divisors (see below), whose sum is σ = 83130724119940. Its totient is φ = 83104737635088.

The previous prime is 83117730877501. The next prime is 83117730877537. The reversal of 83117730877513 is 31577803771138.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9771044501689 + 73346686375824 = 3125867^2 + 8564268^2 .

It is a cyclic number.

It is not a de Polignac number, because 83117730877513 - 2¹³ = 83117730869321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83117730877583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6496611618 + ... + 6496624411.

It is an arithmetic number, because the mean of its divisors is an integer number (20782681029985).

Almost surely, 2^{83117730877513} is an apocalyptic number.

It is an amenable number.

83117730877513 is a deficient number, since it is larger than the sum of its proper divisors (12993242427).

83117730877513 is a wasteful number, since it uses less digits than its factorization.

83117730877513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12993242426.

The product of its (nonzero) digits is 20744640, while the sum is 61.

The spelling of 83117730877513 in words is "eighty-three trillion, one hundred seventeen billion, seven hundred thirty million, eight hundred seventy-seven thousand, five hundred thirteen".