83850583549 has 4 divisors (see below), whose sum is σ = 85102084864. Its totient is φ = 82599082236.

The previous prime is 83850583547. The next prime is 83850583559. The reversal of 83850583549 is 94538505838.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83850583549 - 2¹ = 83850583547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83850583493 and 83850583502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83850583541) 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, 625750557 + ... + 625750690.

It is an arithmetic number, because the mean of its divisors is an integer number (21275521216).

Almost surely, 2^83850583549 is an apocalyptic number.

It is an amenable number.

83850583549 is a deficient number, since it is larger than the sum of its proper divisors (1251501315).

83850583549 is a wasteful number, since it uses less digits than its factorization.

83850583549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251501314.

The product of its (nonzero) digits is 20736000, while the sum is 58.

The spelling of 83850583549 in words is "eighty-three billion, eight hundred fifty million, five hundred eighty-three thousand, five hundred forty-nine".