2651716126651 has 4 divisors (see below), whose sum is σ = 2723384130112. Its totient is φ = 2580048123192.

The previous prime is 2651716126607. The next prime is 2651716126681. The reversal of 2651716126651 is 1566216171562.

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

It is a cyclic number.

It is not a de Polignac number, because 2651716126651 - 2³⁷ = 2514277173179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2651716126595 and 2651716126604.

It is not an unprimeable number, because it can be changed into a prime (2651716126681) 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, 35834001675 + ... + 35834001748.

It is an arithmetic number, because the mean of its divisors is an integer number (680846032528).

Almost surely, 2^{2651716126651} is an apocalyptic number.

2651716126651 is a deficient number, since it is larger than the sum of its proper divisors (71668003461).

2651716126651 is an equidigital number, since it uses as much as digits as its factorization.

2651716126651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71668003460.

The product of its digits is 907200, while the sum is 49.

The spelling of 2651716126651 in words is "two trillion, six hundred fifty-one billion, seven hundred sixteen million, one hundred twenty-six thousand, six hundred fifty-one".