787070978987 has 2 divisors, whose sum is σ = 787070978988. Its totient is φ = 787070978986.

The previous prime is 787070978923. The next prime is 787070979001. The reversal of 787070978987 is 789879070787.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 787070978987 - 2⁶ = 787070978923 is a prime.

It is not a weakly prime, because it can be changed into another prime (787070971987) 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, 393535489493 + 393535489494.

It is an arithmetic number, because the mean of its divisors is an integer number (393535489494).

Almost surely, 2^787070978987 is an apocalyptic number.

787070978987 is a deficient number, since it is larger than the sum of its proper divisors (1).

787070978987 is an equidigital number, since it uses as much as digits as its factorization.

787070978987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 697019904, while the sum is 77.

The spelling of 787070978987 in words is "seven hundred eighty-seven billion, seventy million, nine hundred seventy-eight thousand, nine hundred eighty-seven".