1236638098168 has 16 divisors (see below), whose sum is σ = 2529487019160. Its totient is φ = 562108226400.

The previous prime is 1236638098147. The next prime is 1236638098183. The reversal of 1236638098168 is 8618908366321.

It is a congruent number.

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, 7026352743 + ... + 7026352918.

Almost surely, 2^{1236638098168} is an apocalyptic number.

It is an amenable number.

1236638098168 is an abundant number, since it is smaller than the sum of its proper divisors (1292848920992).

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

1236638098168 is a wasteful number, since it uses less digits than its factorization.

1236638098168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14052705678 (or 14052705674 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 1236638098168 in words is "one trillion, two hundred thirty-six billion, six hundred thirty-eight million, ninety-eight thousand, one hundred sixty-eight".