78607552787 has 2 divisors, whose sum is σ = 78607552788. Its totient is φ = 78607552786.

The previous prime is 78607552763. The next prime is 78607552817. The reversal of 78607552787 is 78725570687.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78607552787 is a prime.

It is not a weakly prime, because it can be changed into another prime (78607552757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39303776393 + 39303776394.

It is an arithmetic number, because the mean of its divisors is an integer number (39303776394).

Almost surely, 2^78607552787 is an apocalyptic number.

78607552787 is a deficient number, since it is larger than the sum of its proper divisors (1).

78607552787 is an equidigital number, since it uses as much as digits as its factorization.

78607552787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46099200, while the sum is 62.

The spelling of 78607552787 in words is "seventy-eight billion, six hundred seven million, five hundred fifty-two thousand, seven hundred eighty-seven".