83428185554 has 32 divisors (see below), whose sum is σ = 146536580736. Its totient is φ = 34876068480.

The previous prime is 83428185509. The next prime is 83428185563. The reversal of 83428185554 is 45558182438.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83428185496 and 83428185505.

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 15 ways as a sum of consecutive naturals, for example, 3853949 + ... + 3875535.

It is an arithmetic number, because the mean of its divisors is an integer number (4579268148).

Almost surely, 2^83428185554 is an apocalyptic number.

83428185554 is a deficient number, since it is larger than the sum of its proper divisors (63108395182).

83428185554 is a wasteful number, since it uses less digits than its factorization.

83428185554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28370.

The product of its digits is 6144000, while the sum is 53.

The spelling of 83428185554 in words is "eighty-three billion, four hundred twenty-eight million, one hundred eighty-five thousand, five hundred fifty-four".