78276125616 has 80 divisors (see below), whose sum is σ = 217836995040. Its totient is φ = 24077352960.

The previous prime is 78276125611. The next prime is 78276125659. The reversal of 78276125616 is 61652167287.

It is a super-2 number, since 2×78276125616² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78276125611) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2146576 + ... + 2182736.

It is an arithmetic number, because the mean of its divisors is an integer number (2722962438).

Almost surely, 2^78276125616 is an apocalyptic number.

It is an amenable number.

78276125616 is an abundant number, since it is smaller than the sum of its proper divisors (139560869424).

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

78276125616 is a wasteful number, since it uses less digits than its factorization.

78276125616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39654 (or 39648 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The spelling of 78276125616 in words is "seventy-eight billion, two hundred seventy-six million, one hundred twenty-five thousand, six hundred sixteen".