78543782130 has 64 divisors (see below), whose sum is σ = 216465177600. Its totient is φ = 18038761920.

The previous prime is 78543782129. The next prime is 78543782153. The reversal of 78543782130 is 3128734587.

It is a super-2 number, since 2×78543782130² (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 78543782130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6257190 + ... + 6269729.

It is an arithmetic number, because the mean of its divisors is an integer number (3382268400).

Almost surely, 2^78543782130 is an apocalyptic number.

78543782130 is an abundant number, since it is smaller than the sum of its proper divisors (137921395470).

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

78543782130 is a wasteful number, since it uses less digits than its factorization.

78543782130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12526959.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 78543782130 in words is "seventy-eight billion, five hundred forty-three million, seven hundred eighty-two thousand, one hundred thirty".