84328405644 has 48 divisors (see below), whose sum is σ = 225750809088. Its totient is φ = 24000073728.

The previous prime is 84328405571. The next prime is 84328405661. The reversal of 84328405644 is 44650482348.

It is a super-2 number, since 2×84328405644² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84328405593 and 84328405602.

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, 1931544 + ... + 1974719.

It is an arithmetic number, because the mean of its divisors is an integer number (4703141856).

Almost surely, 2^84328405644 is an apocalyptic number.

84328405644 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

84328405644 is an abundant number, since it is smaller than the sum of its proper divisors (141422403444).

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

84328405644 is a wasteful number, since it uses less digits than its factorization.

84328405644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906534 (or 3906532 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 48.

The spelling of 84328405644 in words is "eighty-four billion, three hundred twenty-eight million, four hundred five thousand, six hundred forty-four".