78673478107750 has 16 divisors (see below), whose sum is σ = 147276751018176. Its totient is φ = 31469391243000.

The previous prime is 78673478107747. The next prime is 78673478107781. The reversal of 78673478107750 is 5770187437687.

It is a super-2 number, since 2×78673478107750² (a number of 29 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 78673478107750.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157346955966 + ... + 157346956465.

It is an arithmetic number, because the mean of its divisors is an integer number (9204796938636).

Almost surely, 2^{78673478107750} is an apocalyptic number.

78673478107750 is a deficient number, since it is larger than the sum of its proper divisors (68603272910426).

78673478107750 is a wasteful number, since it uses less digits than its factorization.

78673478107750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314693912448 (or 314693912438 counting only the distinct ones).

The product of its (nonzero) digits is 387233280, while the sum is 70.

The spelling of 78673478107750 in words is "seventy-eight trillion, six hundred seventy-three billion, four hundred seventy-eight million, one hundred seven thousand, seven hundred fifty".