2751607421 has 2 divisors, whose sum is σ = 2751607422. Its totient is φ = 2751607420.

The previous prime is 2751607387. The next prime is 2751607423. The reversal of 2751607421 is 1247061572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2021851225 + 729756196 = 44965^2 + 27014^2 .

It is a cyclic number.

It is not a de Polignac number, because 2751607421 - 2¹⁰ = 2751606397 is a prime.

Together with 2751607423, 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 (2751607423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375803710 + 1375803711.

It is an arithmetic number, because the mean of its divisors is an integer number (1375803711).

Almost surely, 2^2751607421 is an apocalyptic number.

It is an amenable number.

2751607421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2751607421 is an equidigital number, since it uses as much as digits as its factorization.

2751607421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 2751607421 is about 52455.7663274496. The cubic root of 2751607421 is about 1401.2925853024.

Adding to 2751607421 its reverse (1247061572), we get a palindrome (3998668993).

The spelling of 2751607421 in words is "two billion, seven hundred fifty-one million, six hundred seven thousand, four hundred twenty-one".