84028451038520 has 64 divisors (see below), whose sum is σ = 190590853201920. Its totient is φ = 33340048447104.

The previous prime is 84028451038517. The next prime is 84028451038573. The reversal of 84028451038520 is 2583015482048.

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, 23762129 + ... + 27068351.

It is an arithmetic number, because the mean of its divisors is an integer number (2977982081280).

Almost surely, 2^{84028451038520} is an apocalyptic number.

It is an amenable number.

84028451038520 is an abundant number, since it is smaller than the sum of its proper divisors (106562402163400).

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

84028451038520 is a wasteful number, since it uses less digits than its factorization.

84028451038520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311364 (or 3311360 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 50.

The spelling of 84028451038520 in words is "eighty-four trillion, twenty-eight billion, four hundred fifty-one million, thirty-eight thousand, five hundred twenty".