2750042657 has 2 divisors, whose sum is σ = 2750042658. Its totient is φ = 2750042656.

The previous prime is 2750042627. The next prime is 2750042699. The reversal of 2750042657 is 7562400572.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2269950736 + 480091921 = 47644^2 + 21911^2 .

It is a cyclic number.

It is not a de Polignac number, because 2750042657 - 2¹⁰ = 2750041633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2750042657.

It is not a weakly prime, because it can be changed into another prime (2750042627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375021328 + 1375021329.

It is an arithmetic number, because the mean of its divisors is an integer number (1375021329).

Almost surely, 2^2750042657 is an apocalyptic number.

It is an amenable number.

2750042657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2750042657 is an equidigital number, since it uses as much as digits as its factorization.

2750042657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 2750042657 is about 52440.8491254671. The cubic root of 2750042657 is about 1401.0269093261.

The spelling of 2750042657 in words is "two billion, seven hundred fifty million, forty-two thousand, six hundred fifty-seven".