78042840876 has 1152 divisors, whose sum is σ = 296299315200. Its totient is φ = 17244057600.

The previous prime is 78042840871. The next prime is 78042840913. The reversal of 78042840876 is 67804824087.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (78042840871) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1069079976 + ... + 1069080048.

Almost surely, 2^78042840876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78042840876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148149657600).

78042840876 is an abundant number, since it is smaller than the sum of its proper divisors (218256474324).

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

78042840876 is a wasteful number, since it uses less digits than its factorization.

78042840876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 54.

The spelling of 78042840876 in words is "seventy-eight billion, forty-two million, eight hundred forty thousand, eight hundred seventy-six".