84472488086778 has 24 divisors (see below), whose sum is σ = 199662244569216. Its totient is φ = 25597723662600.

The previous prime is 84472488086747. The next prime is 84472488086849. The reversal of 84472488086778 is 87768088427448.

84472488086778 is a `hidden beast` number, since 8 + 4 + 4 + 7 + 2 + 488 + 0 + 8 + 67 + 78 = 666.

It is a super-2 number, since 2×84472488086778² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84472488086697 and 84472488086706.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213314363658 + ... + 213314364053.

It is an arithmetic number, because the mean of its divisors is an integer number (8319260190384).

Almost surely, 2^{84472488086778} is an apocalyptic number.

84472488086778 is an abundant number, since it is smaller than the sum of its proper divisors (115189756482438).

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

84472488086778 is a wasteful number, since it uses less digits than its factorization.

84472488086778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426628727730 (or 426628727727 counting only the distinct ones).

The product of its (nonzero) digits is 8631877632, while the sum is 81.

The spelling of 84472488086778 in words is "eighty-four trillion, four hundred seventy-two billion, four hundred eighty-eight million, eighty-six thousand, seven hundred seventy-eight".