2641263536251 has 6 divisors (see below), whose sum is σ = 2787593926452. Its totient is φ = 2502249665580.

The previous prime is 2641263536207. The next prime is 2641263536257. The reversal of 2641263536251 is 1526353621462.

It is not a de Polignac number, because 2641263536251 - 2¹⁹ = 2641263011963 is a prime.

It is a super-2 number, since 2×2641263536251² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2641263536257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3658259385 + ... + 3658260106.

It is an arithmetic number, because the mean of its divisors is an integer number (464598987742).

Almost surely, 2^{2641263536251} is an apocalyptic number.

2641263536251 is a deficient number, since it is larger than the sum of its proper divisors (146330390201).

2641263536251 is an equidigital number, since it uses as much as digits as its factorization.

2641263536251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316519529 (or 7316519510 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 46.

The spelling of 2641263536251 in words is "two trillion, six hundred forty-one billion, two hundred sixty-three million, five hundred thirty-six thousand, two hundred fifty-one".