84519842780 has 48 divisors (see below), whose sum is σ = 181868047200. Its totient is φ = 32974771200.

The previous prime is 84519842761. The next prime is 84519842819. The reversal of 84519842780 is 8724891548.

It is a congruent number.

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, 3801095 + ... + 3823265.

It is an arithmetic number, because the mean of its divisors is an integer number (3788917650).

Almost surely, 2^84519842780 is an apocalyptic number.

It is an amenable number.

84519842780 is an abundant number, since it is smaller than the sum of its proper divisors (97348204420).

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

84519842780 is a wasteful number, since it uses less digits than its factorization.

84519842780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26870 (or 26868 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 84519842780 in words is "eighty-four billion, five hundred nineteen million, eight hundred forty-two thousand, seven hundred eighty".