44985985801 has 3 divisors (see below), whose sum is σ = 44986197901. Its totient is φ = 44985773702.

The previous prime is 44985985783. The next prime is 44985985817. The reversal of 44985985801 is 10858958944.

The square root of 44985985801 is 212099.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-44985985801 is a prime.

It is a super-2 number, since 2×44985985801² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44985985801.

It is not an unprimeable number, because it can be changed into a prime (44985985841) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 106050 + ... + 318148.

Almost surely, 2^44985985801 is an apocalyptic number.

44985985801 is the 212099-th square number.

44985985801 is the 106050-th centered octagonal number.

It is an amenable number.

44985985801 is a deficient number, since it is larger than the sum of its proper divisors (212100).

44985985801 is an frugal number, since it uses more digits than its factorization.

44985985801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424198 (or 212099 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 61.

The spelling of 44985985801 in words is "forty-four billion, nine hundred eighty-five million, nine hundred eighty-five thousand, eight hundred one".