78766885461696 has 112 divisors (see below), whose sum is σ = 214056786394080. Its totient is φ = 25543606763520.

The previous prime is 78766885461679. The next prime is 78766885461721. The reversal of 78766885461696 is 69616458866787.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75559056 + ... + 76594416.

It is an arithmetic number, because the mean of its divisors is an integer number (1911221307090).

Almost surely, 2^{78766885461696} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78766885461696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107028393197040).

78766885461696 is an abundant number, since it is smaller than the sum of its proper divisors (135289900932384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78766885461696 is a wasteful number, since it uses less digits than its factorization.

78766885461696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046122 (or 1046112 counting only the distinct ones).

The product of its digits is 35115171840, while the sum is 87.

The spelling of 78766885461696 in words is "seventy-eight trillion, seven hundred sixty-six billion, eight hundred eighty-five million, four hundred sixty-one thousand, six hundred ninety-six".