83905310508 has 48 divisors (see below), whose sum is σ = 201882508800. Its totient is φ = 27105552000.

The previous prime is 83905310477. The next prime is 83905310561. The reversal of 83905310508 is 80501350938.

It is a super-4 number, since 4×83905310508⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 83905310508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490408 + ... + 638991.

It is an arithmetic number, because the mean of its divisors is an integer number (4205885600).

Almost surely, 2^83905310508 is an apocalyptic number.

It is an amenable number.

83905310508 is an abundant number, since it is smaller than the sum of its proper divisors (117977198292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83905310508 is a wasteful number, since it uses less digits than its factorization.

83905310508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129598 (or 1129596 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 83905310508 in words is "eighty-three billion, nine hundred five million, three hundred ten thousand, five hundred eight".