787676567878 has 4 divisors (see below), whose sum is σ = 1181514851820. Its totient is φ = 393838283938.

The previous prime is 787676567849. The next prime is 787676567929. The reversal of 787676567878 is 878765676787.

787676567878 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196919141968 + ... + 196919141971.

It is an arithmetic number, because the mean of its divisors is an integer number (295378712955).

Almost surely, 2^787676567878 is an apocalyptic number.

787676567878 is a deficient number, since it is larger than the sum of its proper divisors (393838283942).

787676567878 is a wasteful number, since it uses less digits than its factorization.

787676567878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393838283941.

The product of its digits is 9293598720, while the sum is 82.

The spelling of 787676567878 in words is "seven hundred eighty-seven billion, six hundred seventy-six million, five hundred sixty-seven thousand, eight hundred seventy-eight".