82438166028 has 48 divisors (see below), whose sum is σ = 206124670080. Its totient is φ = 25551346944.

The previous prime is 82438166021. The next prime is 82438166053. The reversal of 82438166028 is 82066183428.

It is not an unprimeable number, because it can be changed into a prime (82438166021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2417458 + ... + 2451321.

It is an arithmetic number, because the mean of its divisors is an integer number (4294263960).

Almost surely, 2^82438166028 is an apocalyptic number.

It is an amenable number.

82438166028 is an abundant number, since it is smaller than the sum of its proper divisors (123686504052).

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

82438166028 is a wasteful number, since it uses less digits than its factorization.

82438166028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868886 (or 4868884 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 82438166028 in words is "eighty-two billion, four hundred thirty-eight million, one hundred sixty-six thousand, twenty-eight".