2725317331651 has 4 divisors (see below), whose sum is σ = 2726092233472. Its totient is φ = 2724542429832.

The previous prime is 2725317331603. The next prime is 2725317331663. The reversal of 2725317331651 is 1561337135272.

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 2725317331651 - 2⁷ = 2725317331523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2725317331691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387445635 + ... + 387452668.

It is an arithmetic number, because the mean of its divisors is an integer number (681523058368).

Almost surely, 2^{2725317331651} is an apocalyptic number.

2725317331651 is a deficient number, since it is larger than the sum of its proper divisors (774901821).

2725317331651 is an equidigital number, since it uses as much as digits as its factorization.

2725317331651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774901820.

The product of its digits is 793800, while the sum is 46.

The spelling of 2725317331651 in words is "two trillion, seven hundred twenty-five billion, three hundred seventeen million, three hundred thirty-one thousand, six hundred fifty-one".