2494261686529 has 4 divisors (see below), whose sum is σ = 2494266006276. Its totient is φ = 2494257366784.

The previous prime is 2494261686523. The next prime is 2494261686541. The reversal of 2494261686529 is 9256861624942.

It is a happy number.

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 630348663025 + 1863913023504 = 793945^2 + 1365252^2 .

It is a cyclic number.

It is not a de Polignac number, because 2494261686529 - 2¹⁹ = 2494261162241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2494261686523) 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, 1130104 + ... + 2503129.

It is an arithmetic number, because the mean of its divisors is an integer number (623566501569).

Almost surely, 2^{2494261686529} is an apocalyptic number.

It is an amenable number.

2494261686529 is a deficient number, since it is larger than the sum of its proper divisors (4319747).

2494261686529 is an equidigital number, since it uses as much as digits as its factorization.

2494261686529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319746.

The product of its digits is 89579520, while the sum is 64.

The spelling of 2494261686529 in words is "two trillion, four hundred ninety-four billion, two hundred sixty-one million, six hundred eighty-six thousand, five hundred twenty-nine".