84090557188534 has 32 divisors (see below), whose sum is σ = 135998188784640. Its totient is φ = 38765431166112.

The previous prime is 84090557188513. The next prime is 84090557188537. The reversal of 84090557188534 is 43588175509048.

It is a self number, because there is not a number n which added to its sum of digits gives 84090557188534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84090557188537) 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, 667073499 + ... + 667199545.

It is an arithmetic number, because the mean of its divisors is an integer number (4249943399520).

Almost surely, 2^{84090557188534} is an apocalyptic number.

84090557188534 is a deficient number, since it is larger than the sum of its proper divisors (51907631596106).

84090557188534 is a wasteful number, since it uses less digits than its factorization.

84090557188534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156004.

The product of its (nonzero) digits is 193536000, while the sum is 67.

The spelling of 84090557188534 in words is "eighty-four trillion, ninety billion, five hundred fifty-seven million, one hundred eighty-eight thousand, five hundred thirty-four".