2651840671 has 2 divisors, whose sum is σ = 2651840672. Its totient is φ = 2651840670.

The previous prime is 2651840641. The next prime is 2651840701. The reversal of 2651840671 is 1760481562.

It is a balanced prime because it is at equal distance from previous prime (2651840641) and next prime (2651840701).

It is a cyclic number.

It is not a de Polignac number, because 2651840671 - 2²¹ = 2649743519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2651840641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325920335 + 1325920336.

It is an arithmetic number, because the mean of its divisors is an integer number (1325920336).

Almost surely, 2^2651840671 is an apocalyptic number.

2651840671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651840671 is an equidigital number, since it uses as much as digits as its factorization.

2651840671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 2651840671 is about 51496.0257786948. The cubic root of 2651840671 is about 1384.1478283782.

The spelling of 2651840671 in words is "two billion, six hundred fifty-one million, eight hundred forty thousand, six hundred seventy-one".