83080234047581 has 4 divisors (see below), whose sum is σ = 83084612933052. Its totient is φ = 83075855162112.

The previous prime is 83080234047521. The next prime is 83080234047583. The reversal of 83080234047581 is 18574043208038.

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 33208319427556 + 49871914620025 = 5762666^2 + 7062005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83080234047581 is a prime.

It is a super-2 number, since 2×83080234047581² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83080234047583) 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, 2189414276 + ... + 2189452221.

It is an arithmetic number, because the mean of its divisors is an integer number (20771153233263).

Almost surely, 2^{83080234047581} is an apocalyptic number.

It is an amenable number.

83080234047581 is a deficient number, since it is larger than the sum of its proper divisors (4378885471).

83080234047581 is a wasteful number, since it uses less digits than its factorization.

83080234047581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4378885470.

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 83080234047581 in words is "eighty-three trillion, eighty billion, two hundred thirty-four million, forty-seven thousand, five hundred eighty-one".