2754751661 has 2 divisors, whose sum is σ = 2754751662. Its totient is φ = 2754751660.

The previous prime is 2754751631. The next prime is 2754751663. The reversal of 2754751661 is 1661574572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2619494761 + 135256900 = 51181^2 + 11630^2 .

It is a cyclic number.

It is not a de Polignac number, because 2754751661 - 2¹⁰ = 2754750637 is a prime.

Together with 2754751663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2754751663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1377375830 + 1377375831.

It is an arithmetic number, because the mean of its divisors is an integer number (1377375831).

Almost surely, 2^2754751661 is an apocalyptic number.

It is an amenable number.

2754751661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2754751661 is an equidigital number, since it uses as much as digits as its factorization.

2754751661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 44.

The square root of 2754751661 is about 52485.7281649021. The cubic root of 2754751661 is about 1401.8261307730.

The spelling of 2754751661 in words is "two billion, seven hundred fifty-four million, seven hundred fifty-one thousand, six hundred sixty-one".