2534445989 has 4 divisors (see below), whose sum is σ = 2538212556. Its totient is φ = 2530679424.

The previous prime is 2534445983. The next prime is 2534446007. The reversal of 2534445989 is 9895444352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1860628225 + 673817764 = 43135^2 + 25958^2 .

It is a cyclic number.

It is not a de Polignac number, because 2534445989 - 2⁸ = 2534445733 is a prime.

It is a super-3 number, since 3×2534445989³ (a number of 29 digits) contains 333 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 2534445989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2534445983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1882274 + ... + 1883619.

It is an arithmetic number, because the mean of its divisors is an integer number (634553139).

Almost surely, 2^2534445989 is an apocalyptic number.

It is an amenable number.

2534445989 is a deficient number, since it is larger than the sum of its proper divisors (3766567).

2534445989 is an equidigital number, since it uses as much as digits as its factorization.

2534445989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766566.

The product of its digits is 6220800, while the sum is 53.

The square root of 2534445989 is about 50343.2814683350. The cubic root of 2534445989 is about 1363.4137833828.

The spelling of 2534445989 in words is "two billion, five hundred thirty-four million, four hundred forty-five thousand, nine hundred eighty-nine".