1272741264320 has 224 divisors, whose sum is σ = 3109301985600. Its totient is φ = 496102440960.

The previous prime is 1272741264299. The next prime is 1272741264323. The reversal of 1272741264320 is 234621472721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272741264323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 734414174 + ... + 734415906.

Almost surely, 2^{1272741264320} is an apocalyptic number.

1272741264320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1272741264320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1554650992800).

1272741264320 is an abundant number, since it is smaller than the sum of its proper divisors (1836560721280).

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

1272741264320 is a wasteful number, since it uses less digits than its factorization.

1272741264320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183 (or 2173 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 1272741264320 in words is "one trillion, two hundred seventy-two billion, seven hundred forty-one million, two hundred sixty-four thousand, three hundred twenty".