82387329940 has 24 divisors (see below), whose sum is σ = 182119361760. Its totient is φ = 31220461728.

The previous prime is 82387329923. The next prime is 82387329961. The reversal of 82387329940 is 4992378328.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108404002 + ... + 108404761.

It is an arithmetic number, because the mean of its divisors is an integer number (7588306740).

Almost surely, 2^82387329940 is an apocalyptic number.

It is an amenable number.

82387329940 is an abundant number, since it is smaller than the sum of its proper divisors (99732031820).

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

82387329940 is a wasteful number, since it uses less digits than its factorization.

82387329940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216808791 (or 216808789 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 82387329940 in words is "eighty-two billion, three hundred eighty-seven million, three hundred twenty-nine thousand, nine hundred forty".