1272669179904 has 624 divisors, whose sum is σ = 4046524372800. Its totient is φ = 398545256448.

The previous prime is 1272669179897. The next prime is 1272669179993. The reversal of 1272669179904 is 4099719662721.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3271642942 + ... + 3271643330.

It is an arithmetic number, because the mean of its divisors is an integer number (6484814700).

Almost surely, 2^{1272669179904} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1272669179904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2023262186400).

1272669179904 is an abundant number, since it is smaller than the sum of its proper divisors (2773855192896).

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

1272669179904 is an equidigital number, since it uses as much as digits as its factorization.

1272669179904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 1272669179904 in words is "one trillion, two hundred seventy-two billion, six hundred sixty-nine million, one hundred seventy-nine thousand, nine hundred four".