4581728816090 has 32 divisors (see below), whose sum is σ = 8732852182224. Its totient is φ = 1724764446720.

The previous prime is 4581728816087. The next prime is 4581728816101. The reversal of 4581728816090 is 906188271854.

It can be written as a sum of positive squares in 8 ways, for example, as 1396185649609 + 3185543166481 = 1181603^2 + 1784809^2 .

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, 1484162 + ... + 3371378.

Almost surely, 2^{4581728816090} is an apocalyptic number.

4581728816090 is a deficient number, since it is larger than the sum of its proper divisors (4151123366134).

4581728816090 is a wasteful number, since it uses less digits than its factorization.

4581728816090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901522.

The product of its (nonzero) digits is 7741440, while the sum is 59.

The spelling of 4581728816090 in words is "four trillion, five hundred eighty-one billion, seven hundred twenty-eight million, eight hundred sixteen thousand, ninety".