2538744064 has 18 divisors (see below), whose sum is σ = 5067571670. Its totient is φ = 1269371904.

The previous prime is 2538744059. The next prime is 2538744073. The reversal of 2538744064 is 4604478352.

It can be written as a sum of positive squares in only one way, i.e., 1893990400 + 644753664 = 43520^2 + 25392^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2538744064.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4958229 + ... + 4958740.

Almost surely, 2^2538744064 is an apocalyptic number.

It is an amenable number.

2538744064 is a deficient number, since it is larger than the sum of its proper divisors (2528827606).

2538744064 is an frugal number, since it uses more digits than its factorization.

2538744064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9916985 (or 9916971 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 43.

The square root of 2538744064 is about 50385.9510578098. The cubic root of 2538744064 is about 1364.1840694364.

The spelling of 2538744064 in words is "two billion, five hundred thirty-eight million, seven hundred forty-four thousand, sixty-four".