1272269989008 has 80 divisors (see below), whose sum is σ = 3659061340800. Its totient is φ = 423256740480.

The previous prime is 1272269988961. The next prime is 1272269989031. The reversal of 1272269989008 is 8009899622721.

It is a happy number.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

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, 2673108 + ... + 3112883.

It is an arithmetic number, because the mean of its divisors is an integer number (45738266760).

Almost surely, 2^{1272269989008} is an apocalyptic number.

1272269989008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1272269989008 is an abundant number, since it is smaller than the sum of its proper divisors (2386791351792).

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

1272269989008 is a wasteful number, since it uses less digits than its factorization.

1272269989008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786517 (or 5786505 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 1272269989008 in words is "one trillion, two hundred seventy-two billion, two hundred sixty-nine million, nine hundred eighty-nine thousand, eight".