82371647788 has 24 divisors (see below), whose sum is σ = 148881281472. Its totient is φ = 39852042384.

The previous prime is 82371647783. The next prime is 82371647791. The reversal of 82371647788 is 88774617328.

It is not an unprimeable number, because it can be changed into a prime (82371647783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219470 + ... + 2256277.

It is an arithmetic number, because the mean of its divisors is an integer number (6203386728).

Almost surely, 2^82371647788 is an apocalyptic number.

It is an amenable number.

82371647788 is a deficient number, since it is larger than the sum of its proper divisors (66509633684).

82371647788 is a wasteful number, since it uses less digits than its factorization.

82371647788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475901 (or 4475899 counting only the distinct ones).

The product of its digits is 25288704, while the sum is 61.

The spelling of 82371647788 in words is "eighty-two billion, three hundred seventy-one million, six hundred forty-seven thousand, seven hundred eighty-eight".