82347642784236 has 48 divisors (see below), whose sum is σ = 203480988834816. Its totient is φ = 25830253473024.

The previous prime is 82347642784223. The next prime is 82347642784279. The reversal of 82347642784236 is 63248724674328.

It is a happy number.

It is a super-2 number, since 2×82347642784236² (a number of 29 digits) contains 22 as substring.

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, 32374116 + ... + 34824971.

It is an arithmetic number, because the mean of its divisors is an integer number (4239187267392).

Almost surely, 2^{82347642784236} is an apocalyptic number.

It is an amenable number.

82347642784236 is an abundant number, since it is smaller than the sum of its proper divisors (121133346050580).

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

82347642784236 is a wasteful number, since it uses less digits than its factorization.

82347642784236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67205118 (or 67205116 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 66.

The spelling of 82347642784236 in words is "eighty-two trillion, three hundred forty-seven billion, six hundred forty-two million, seven hundred eighty-four thousand, two hundred thirty-six".