2748372457 has 2 divisors, whose sum is σ = 2748372458. Its totient is φ = 2748372456.

The previous prime is 2748372377. The next prime is 2748372493. The reversal of 2748372457 is 7542738472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2611107801 + 137264656 = 51099^2 + 11716^2 .

It is a cyclic number.

It is not a de Polignac number, because 2748372457 - 2²³ = 2739983849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2748372457.

It is not a weakly prime, because it can be changed into another prime (2748372257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374186228 + 1374186229.

It is an arithmetic number, because the mean of its divisors is an integer number (1374186229).

Almost surely, 2^2748372457 is an apocalyptic number.

It is an amenable number.

2748372457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748372457 is an equidigital number, since it uses as much as digits as its factorization.

2748372457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2634240, while the sum is 49.

The square root of 2748372457 is about 52424.9220981777. The cubic root of 2748372457 is about 1400.7432205114.

The spelling of 2748372457 in words is "two billion, seven hundred forty-eight million, three hundred seventy-two thousand, four hundred fifty-seven".