82380641035640 has 128 divisors (see below), whose sum is σ = 197523206812800. Its totient is φ = 30814819614720.

The previous prime is 82380641035631. The next prime is 82380641035687. The reversal of 82380641035640 is 4653014608328.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71370782 + ... + 72515858.

It is an arithmetic number, because the mean of its divisors is an integer number (1543150053225).

Almost surely, 2^{82380641035640} 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 82380641035640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98761603406400).

82380641035640 is an abundant number, since it is smaller than the sum of its proper divisors (115142565777160).

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

82380641035640 is a wasteful number, since it uses less digits than its factorization.

82380641035640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145785 (or 1145781 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 82380641035640 in words is "eighty-two trillion, three hundred eighty billion, six hundred forty-one million, thirty-five thousand, six hundred forty".