78183683666276 has 12 divisors (see below), whose sum is σ = 136823118213180. Its totient is φ = 39091364176800.

The previous prime is 78183683666219. The next prime is 78183683666281. The reversal of 78183683666276 is 67266638638187.

It can be written as a sum of positive squares in 2 ways, for example, as 30363692626276 + 47819991040000 = 5510326^2 + 6915200^2 .

It is a super-2 number, since 2×78183683666276² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78183683666197 and 78183683666206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119045675 + ... + 119700626.

It is an arithmetic number, because the mean of its divisors is an integer number (11401926517765).

Almost surely, 2^{78183683666276} is an apocalyptic number.

It is an amenable number.

78183683666276 is a deficient number, since it is larger than the sum of its proper divisors (58639434546904).

78183683666276 is a wasteful number, since it uses less digits than its factorization.

78183683666276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238828174 (or 238828172 counting only the distinct ones).

The product of its digits is 3511517184, while the sum is 77.

The spelling of 78183683666276 in words is "seventy-eight trillion, one hundred eighty-three billion, six hundred eighty-three million, six hundred sixty-six thousand, two hundred seventy-six".