78180350432 has 24 divisors (see below), whose sum is σ = 154323703800. Its totient is φ = 38987028864.

The previous prime is 78180350411. The next prime is 78180350449. The reversal of 78180350432 is 23405308187.

It is a super-2 number, since 2×78180350432² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78180350432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3211007 + ... + 3235262.

It is an arithmetic number, because the mean of its divisors is an integer number (6430154325).

Almost surely, 2^78180350432 is an apocalyptic number.

It is an amenable number.

78180350432 is a deficient number, since it is larger than the sum of its proper divisors (76143353368).

78180350432 is a wasteful number, since it uses less digits than its factorization.

78180350432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6446658 (or 6446650 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 78180350432 in words is "seventy-eight billion, one hundred eighty million, three hundred fifty thousand, four hundred thirty-two".