84026550390 has 64 divisors (see below), whose sum is σ = 202206870720. Its totient is φ = 22346823680.

The previous prime is 84026550379. The next prime is 84026550427. The reversal of 84026550390 is 9305562048.

It is a super-2 number, since 2×84026550390² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19923562 + ... + 19927778.

It is an arithmetic number, because the mean of its divisors is an integer number (3159482355).

Almost surely, 2^84026550390 is an apocalyptic number.

84026550390 is an abundant number, since it is smaller than the sum of its proper divisors (118180320330).

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

84026550390 is a wasteful number, since it uses less digits than its factorization.

84026550390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5857.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 84026550390 in words is "eighty-four billion, twenty-six million, five hundred fifty thousand, three hundred ninety".