2541562281659 has 4 divisors (see below), whose sum is σ = 2691065945304. Its totient is φ = 2392058618016.

The previous prime is 2541562281623. The next prime is 2541562281673. The reversal of 2541562281659 is 9561822651452.

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-2541562281659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2541562281619) 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, 74751831797 + ... + 74751831830.

It is an arithmetic number, because the mean of its divisors is an integer number (672766486326).

Almost surely, 2^{2541562281659} is an apocalyptic number.

2541562281659 is a deficient number, since it is larger than the sum of its proper divisors (149503663645).

2541562281659 is a wasteful number, since it uses less digits than its factorization.

2541562281659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149503663644.

The product of its digits is 10368000, while the sum is 56.

The spelling of 2541562281659 in words is "two trillion, five hundred forty-one billion, five hundred sixty-two million, two hundred eighty-one thousand, six hundred fifty-nine".