1272451533725 has 12 divisors (see below), whose sum is σ = 1579036182240. Its totient is φ = 1017189433200.

The previous prime is 1272451533611. The next prime is 1272451533781. The reversal of 1272451533725 is 5273351542721.

It is not a de Polignac number, because 1272451533725 - 2²⁸ = 1272183098269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1272451533725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19261211 + ... + 19327160.

It is an arithmetic number, because the mean of its divisors is an integer number (131586348520).

Almost surely, 2^{1272451533725} is an apocalyptic number.

It is an amenable number.

1272451533725 is a deficient number, since it is larger than the sum of its proper divisors (306584648515).

1272451533725 is a wasteful number, since it uses less digits than its factorization.

1272451533725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38589700 (or 38589695 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 47.

The spelling of 1272451533725 in words is "one trillion, two hundred seventy-two billion, four hundred fifty-one million, five hundred thirty-three thousand, seven hundred twenty-five".