7938136783 has 2 divisors, whose sum is σ = 7938136784. Its totient is φ = 7938136782.

The previous prime is 7938136777. The next prime is 7938136823. The reversal of 7938136783 is 3876318397.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7938136783 - 2¹⁷ = 7938005711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7938136183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3969068391 + 3969068392.

It is an arithmetic number, because the mean of its divisors is an integer number (3969068392).

Almost surely, 2^7938136783 is an apocalyptic number.

7938136783 is a deficient number, since it is larger than the sum of its proper divisors (1).

7938136783 is an equidigital number, since it uses as much as digits as its factorization.

7938136783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 55.

The square root of 7938136783 is about 89096.2220467288. Note that the first 3 decimals coincide. The cubic root of 7938136783 is about 1994.8313861385.

The spelling of 7938136783 in words is "seven billion, nine hundred thirty-eight million, one hundred thirty-six thousand, seven hundred eighty-three".