787488064778 has 4 divisors (see below), whose sum is σ = 1181232097170. Its totient is φ = 393744032388.

The previous prime is 787488064739. The next prime is 787488064787. The reversal of 787488064778 is 877460884787.

787488064778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 787448588689 + 39476089 = 887383^2 + 6283^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196872016193 + ... + 196872016196.

Almost surely, 2^787488064778 is an apocalyptic number.

787488064778 is a deficient number, since it is larger than the sum of its proper divisors (393744032392).

787488064778 is a wasteful number, since it uses less digits than its factorization.

787488064778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393744032391.

The product of its (nonzero) digits is 944111616, while the sum is 74.

The spelling of 787488064778 in words is "seven hundred eighty-seven billion, four hundred eighty-eight million, sixty-four thousand, seven hundred seventy-eight".