84529289280 has 56 divisors (see below), whose sum is σ = 268380496512. Its totient is φ = 22541143552.

The previous prime is 84529289267. The next prime is 84529289287. The reversal of 84529289280 is 8298292548.

It is a self number, because there is not a number n which added to its sum of digits gives 84529289280.

It is not an unprimeable number, because it can be changed into a prime (84529289287) 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, 44024712 + ... + 44026631.

Almost surely, 2^84529289280 is an apocalyptic number.

84529289280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84529289280 is an abundant number, since it is smaller than the sum of its proper divisors (183851207232).

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

84529289280 is a wasteful number, since it uses less digits than its factorization.

84529289280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88051363 (or 88051353 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 84529289280 in words is "eighty-four billion, five hundred twenty-nine million, two hundred eighty-nine thousand, two hundred eighty".