2638852151539 has 4 divisors (see below), whose sum is σ = 2638856276056. Its totient is φ = 2638848027024.

The previous prime is 2638852151519. The next prime is 2638852151581. The reversal of 2638852151539 is 9351512588362.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2638852151539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2638852151519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874554 + ... + 2458159.

It is an arithmetic number, because the mean of its divisors is an integer number (659714069014).

Almost surely, 2^{2638852151539} is an apocalyptic number.

2638852151539 is a deficient number, since it is larger than the sum of its proper divisors (4124517).

2638852151539 is an equidigital number, since it uses as much as digits as its factorization.

2638852151539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124516.

The product of its digits is 15552000, while the sum is 58.

The spelling of 2638852151539 in words is "two trillion, six hundred thirty-eight billion, eight hundred fifty-two million, one hundred fifty-one thousand, five hundred thirty-nine".