7793640863 has 2 divisors, whose sum is σ = 7793640864. Its totient is φ = 7793640862.

The previous prime is 7793640859. The next prime is 7793640889. The reversal of 7793640863 is 3680463977.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7793640863 - 2² = 7793640859 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7793640163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3896820431 + 3896820432.

It is an arithmetic number, because the mean of its divisors is an integer number (3896820432).

Almost surely, 2^7793640863 is an apocalyptic number.

7793640863 is the 47189-th centered heptagonal number.

7793640863 is a deficient number, since it is larger than the sum of its proper divisors (1).

7793640863 is an equidigital number, since it uses as much as digits as its factorization.

7793640863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 53.

The square root of 7793640863 is about 88281.5997985990. The cubic root of 7793640863 is about 1982.6533877451.

The spelling of 7793640863 in words is "seven billion, seven hundred ninety-three million, six hundred forty thousand, eight hundred sixty-three".