78127818376 has 16 divisors (see below), whose sum is σ = 149606461440. Its totient is φ = 38232762000.

The previous prime is 78127818371. The next prime is 78127818401. The reversal of 78127818376 is 67381872187.

It is a super-2 number, since 2×78127818376² (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 78127818376.

It is not an unprimeable number, because it can be changed into a prime (78127818371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103893000 + ... + 103893751.

It is an arithmetic number, because the mean of its divisors is an integer number (9350403840).

Almost surely, 2^78127818376 is an apocalyptic number.

It is an amenable number.

78127818376 is a deficient number, since it is larger than the sum of its proper divisors (71478643064).

78127818376 is a wasteful number, since it uses less digits than its factorization.

78127818376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207786804 (or 207786800 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 58.

The spelling of 78127818376 in words is "seventy-eight billion, one hundred twenty-seven million, eight hundred eighteen thousand, three hundred seventy-six".