83218898590 has 16 divisors (see below), whose sum is σ = 151119630288. Its totient is φ = 32992978816.

The previous prime is 83218898549. The next prime is 83218898621. The reversal of 83218898590 is 9589881238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36821392 + ... + 36823651.

It is an arithmetic number, because the mean of its divisors is an integer number (9444976893).

Almost surely, 2^83218898590 is an apocalyptic number.

83218898590 is a deficient number, since it is larger than the sum of its proper divisors (67900731698).

83218898590 is a wasteful number, since it uses less digits than its factorization.

83218898590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73645163.

The product of its (nonzero) digits is 9953280, while the sum is 61.

The spelling of 83218898590 in words is "eighty-three billion, two hundred eighteen million, eight hundred ninety-eight thousand, five hundred ninety".