78768284956 has 12 divisors (see below), whose sum is σ = 138690171592. Its totient is φ = 39142521648.

The previous prime is 78768284939. The next prime is 78768284957. The reversal of 78768284956 is 65948286787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78768284957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60404475 + ... + 60405778.

Almost surely, 2^78768284956 is an apocalyptic number.

It is an amenable number.

78768284956 is a deficient number, since it is larger than the sum of its proper divisors (59921886636).

78768284956 is a wasteful number, since it uses less digits than its factorization.

78768284956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120810420 (or 120810418 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 70.

The spelling of 78768284956 in words is "seventy-eight billion, seven hundred sixty-eight million, two hundred eighty-four thousand, nine hundred fifty-six".