83890965480 has 192 divisors, whose sum is σ = 293102426880. Its totient is φ = 19152806400.

The previous prime is 83890965443. The next prime is 83890965493. The reversal of 83890965480 is 8456909838.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5348850 + ... + 5364510.

It is an arithmetic number, because the mean of its divisors is an integer number (1526575140).

Almost surely, 2^83890965480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83890965480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146551213440).

83890965480 is an abundant number, since it is smaller than the sum of its proper divisors (209211461400).

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

83890965480 is a wasteful number, since it uses less digits than its factorization.

83890965480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16600 (or 16589 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 83890965480 in words is "eighty-three billion, eight hundred ninety million, nine hundred sixty-five thousand, four hundred eighty".