90723491412544 has 21 divisors (see below), whose sum is σ = 180029579479491. Its totient is φ = 45361707606720.

The previous prime is 90723491412529. The next prime is 90723491412551. The reversal of 90723491412544 is 44521419432709.

It is a happy number.

The square root of 90723491412544 is 9524888.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 75603799 + ... + 76794409.

It is an arithmetic number, because the mean of its divisors is an integer number (8572837118071).

Almost surely, 2^{90723491412544} is an apocalyptic number.

90723491412544 is the 9524888-th square number.

It is an amenable number.

90723491412544 is a deficient number, since it is larger than the sum of its proper divisors (89306088066947).

90723491412544 is an frugal number, since it uses more digits than its factorization.

90723491412544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381234 (or 1190613 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 90723491412544 in words is "ninety trillion, seven hundred twenty-three billion, four hundred ninety-one million, four hundred twelve thousand, five hundred forty-four".