78469305216 has 64 divisors (see below), whose sum is σ = 211966934400. Its totient is φ = 25713098240.

The previous prime is 78469305199. The next prime is 78469305259. The reversal of 78469305216 is 61250396487.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×78469305216² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 1709100 + ... + 1754411.

It is an arithmetic number, because the mean of its divisors is an integer number (3311983350).

It is a 1-persistent number, because it is pandigital, but 2⋅78469305216 = 156938610432 is not.

Almost surely, 2^78469305216 is an apocalyptic number.

It is an amenable number.

78469305216 is an abundant number, since it is smaller than the sum of its proper divisors (133497629184).

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

78469305216 is a wasteful number, since it uses less digits than its factorization.

78469305216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463587 (or 3463575 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 78469305216 in words is "seventy-eight billion, four hundred sixty-nine million, three hundred five thousand, two hundred sixteen".