2787375761 has 2 divisors, whose sum is σ = 2787375762. Its totient is φ = 2787375760.

The previous prime is 2787375739. The next prime is 2787375779. The reversal of 2787375761 is 1675737872.

2787375761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2665140625 + 122235136 = 51625^2 + 11056^2 .

It is a cyclic number.

It is not a de Polignac number, because 2787375761 - 2¹⁸ = 2787113617 is a prime.

It is not a weakly prime, because it can be changed into another prime (2787375061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1393687880 + 1393687881.

It is an arithmetic number, because the mean of its divisors is an integer number (1393687881).

Almost surely, 2^2787375761 is an apocalyptic number.

It is an amenable number.

2787375761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2787375761 is an equidigital number, since it uses as much as digits as its factorization.

2787375761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3457440, while the sum is 53.

The square root of 2787375761 is about 52795.6036143162. The cubic root of 2787375761 is about 1407.3382981674.

The spelling of 2787375761 in words is "two billion, seven hundred eighty-seven million, three hundred seventy-five thousand, seven hundred sixty-one".