78114746856 has 32 divisors (see below), whose sum is σ = 197758857600. Its totient is φ = 25708650240.

The previous prime is 78114746839. The next prime is 78114746861. The reversal of 78114746856 is 65864741187.

It is a super-2 number, since 2×78114746856² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78114746796 and 78114746805.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20597985 + ... + 20601776.

It is an arithmetic number, because the mean of its divisors is an integer number (6179964300).

Almost surely, 2^78114746856 is an apocalyptic number.

It is an amenable number.

78114746856 is an abundant number, since it is smaller than the sum of its proper divisors (119644110744).

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

78114746856 is a wasteful number, since it uses less digits than its factorization.

78114746856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41199849 (or 41199845 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 57.

It can be divided in two parts, 78114 and 746856, that added together give a triangular number (824970 = T₁₂₈₄).

The spelling of 78114746856 in words is "seventy-eight billion, one hundred fourteen million, seven hundred forty-six thousand, eight hundred fifty-six".