1215732987068 has 48 divisors (see below), whose sum is σ = 2156847829920. Its totient is φ = 599541600000.

The previous prime is 1215732987059. The next prime is 1215732987097. The reversal of 1215732987068 is 8607892375121.

It is a junction number, because it is equal to n+sod(n) for n = 1215732986998 and 1215732987016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115767818 + ... + 115778318.

It is an arithmetic number, because the mean of its divisors is an integer number (44934329790).

Almost surely, 2^{1215732987068} is an apocalyptic number.

It is an amenable number.

1215732987068 is a deficient number, since it is larger than the sum of its proper divisors (941114842852).

1215732987068 is a wasteful number, since it uses less digits than its factorization.

1215732987068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11678 (or 11676 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 59.

The spelling of 1215732987068 in words is "one trillion, two hundred fifteen billion, seven hundred thirty-two million, nine hundred eighty-seven thousand, sixty-eight".