2640763143 has 6 divisors (see below), whose sum is σ = 3814435664. Its totient is φ = 1760508756.

The previous prime is 2640763121. The next prime is 2640763217. The reversal of 2640763143 is 3413670462.

It is a happy number.

2640763143 is a `hidden beast` number, since 2 + 640 + 7 + 6 + 3 + 1 + 4 + 3 = 666.

It is not a de Polignac number, because 2640763143 - 2¹⁸ = 2640500999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2640763098 and 2640763107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640763943) 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 in 5 ways as a sum of consecutive naturals, for example, 146709055 + ... + 146709072.

Almost surely, 2^2640763143 is an apocalyptic number.

2640763143 is a deficient number, since it is larger than the sum of its proper divisors (1173672521).

2640763143 is a wasteful number, since it uses less digits than its factorization.

2640763143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293418133 (or 293418130 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 2640763143 is about 51388.3561033042. The cubic root of 2640763143 is about 1382.2178059277.

The spelling of 2640763143 in words is "two billion, six hundred forty million, seven hundred sixty-three thousand, one hundred forty-three".