82420074828 has 120 divisors (see below), whose sum is σ = 265184533152. Its totient is φ = 21737154816.

The previous prime is 82420074823. The next prime is 82420074859. The reversal of 82420074828 is 82847002428.

82420074828 is a `hidden beast` number, since 82 + 420 + 0 + 74 + 82 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (82420074823) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1368225 + ... + 1427192.

Almost surely, 2^82420074828 is an apocalyptic number.

It is an amenable number.

82420074828 is an abundant number, since it is smaller than the sum of its proper divisors (182764458324).

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

82420074828 is a wasteful number, since it uses less digits than its factorization.

82420074828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795453 (or 2795442 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 45.

The spelling of 82420074828 in words is "eighty-two billion, four hundred twenty million, seventy-four thousand, eight hundred twenty-eight".