1253771330172 has 48 divisors (see below), whose sum is σ = 3232228914432. Its totient is φ = 376238283520.

The previous prime is 1253771330129. The next prime is 1253771330173. The reversal of 1253771330172 is 2710331773521.

It is a super-2 number, since 2×1253771330172² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253771330173) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 133602654 + ... + 133612037.

It is an arithmetic number, because the mean of its divisors is an integer number (67338102384).

Almost surely, 2^{1253771330172} is an apocalyptic number.

1253771330172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1253771330172 is an abundant number, since it is smaller than the sum of its proper divisors (1978457584260).

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

1253771330172 is a wasteful number, since it uses less digits than its factorization.

1253771330172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267214738 (or 267214736 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 42.

The spelling of 1253771330172 in words is "one trillion, two hundred fifty-three billion, seven hundred seventy-one million, three hundred thirty thousand, one hundred seventy-two".