1983678712 has 32 divisors (see below), whose sum is σ = 3773689920. Its totient is φ = 977448960.

The previous prime is 1983678701. The next prime is 1983678721. The reversal of 1983678712 is 2178763891.

It is a self number, because there is not a number n which added to its sum of digits gives 1983678712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181713 + ... + 192319.

It is an arithmetic number, because the mean of its divisors is an integer number (117927810).

Almost surely, 2^1983678712 is an apocalyptic number.

It is an amenable number.

1983678712 is a deficient number, since it is larger than the sum of its proper divisors (1790011208).

1983678712 is a wasteful number, since it uses less digits than its factorization.

1983678712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10951 (or 10947 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 52.

The square root of 1983678712 is about 44538.5081923497. The cubic root of 1983678712 is about 1256.4844288065.

The spelling of 1983678712 in words is "one billion, nine hundred eighty-three million, six hundred seventy-eight thousand, seven hundred twelve".