1205424574172 has 144 divisors (see below), whose sum is σ = 2628223395840. Its totient is φ = 473656045824.

The previous prime is 1205424574169. The next prime is 1205424574187. The reversal of 1205424574172 is 2714754245021.

It is a congruent number.

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, 594096854 + ... + 594098882.

It is an arithmetic number, because the mean of its divisors is an integer number (18251551360).

Almost surely, 2^{1205424574172} 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 1205424574172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314111697920).

1205424574172 is an abundant number, since it is smaller than the sum of its proper divisors (1422798821668).

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

1205424574172 is a wasteful number, since it uses less digits than its factorization.

1205424574172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852 (or 2837 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 44.

The spelling of 1205424574172 in words is "one trillion, two hundred five billion, four hundred twenty-four million, five hundred seventy-four thousand, one hundred seventy-two".