1272480429408 has 24 divisors (see below), whose sum is σ = 3340261127448. Its totient is φ = 424160143104.

The previous prime is 1272480429379. The next prime is 1272480429431. The reversal of 1272480429408 is 8049240842721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6627502141 + ... + 6627502332.

It is an arithmetic number, because the mean of its divisors is an integer number (139177546977).

Almost surely, 2^{1272480429408} is an apocalyptic number.

It is an amenable number.

1272480429408 is an abundant number, since it is smaller than the sum of its proper divisors (2067780698040).

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

1272480429408 is a wasteful number, since it uses less digits than its factorization.

1272480429408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13255004486 (or 13255004478 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 1272480429408 in words is "one trillion, two hundred seventy-two billion, four hundred eighty million, four hundred twenty-nine thousand, four hundred eight".