2451338761 has 2 divisors, whose sum is σ = 2451338762. Its totient is φ = 2451338760.

The previous prime is 2451338717. The next prime is 2451338801. The reversal of 2451338761 is 1678331542.

It is an a-pointer prime, because the next prime (2451338801) can be obtained adding 2451338761 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1230255625 + 1221083136 = 35075^2 + 34944^2 .

It is a cyclic number.

It is not a de Polignac number, because 2451338761 - 2⁹ = 2451338249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2451338161) 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, 1225669380 + 1225669381.

It is an arithmetic number, because the mean of its divisors is an integer number (1225669381).

Almost surely, 2^2451338761 is an apocalyptic number.

It is an amenable number.

2451338761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451338761 is an equidigital number, since it uses as much as digits as its factorization.

2451338761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 2451338761 is about 49510.9963644441. The cubic root of 2451338761 is about 1348.3452539339.

The spelling of 2451338761 in words is "two billion, four hundred fifty-one million, three hundred thirty-eight thousand, seven hundred sixty-one".