1272837638404 has 12 divisors (see below), whose sum is σ = 2228963837184. Its totient is φ = 635990827784.

The previous prime is 1272837638399. The next prime is 1272837638419. The reversal of 1272837638404 is 4048367382721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106991164 + ... + 107003059.

It is an arithmetic number, because the mean of its divisors is an integer number (185746986432).

Almost surely, 2^{1272837638404} is an apocalyptic number.

It is an amenable number.

1272837638404 is a deficient number, since it is larger than the sum of its proper divisors (956126198780).

1272837638404 is a wasteful number, since it uses less digits than its factorization.

1272837638404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213995714 (or 213995712 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 55.

The spelling of 1272837638404 in words is "one trillion, two hundred seventy-two billion, eight hundred thirty-seven million, six hundred thirty-eight thousand, four hundred four".