1235423455552 has 112 divisors (see below), whose sum is σ = 2880692841600. Its totient is φ = 518259087360.

The previous prime is 1235423455529. The next prime is 1235423455571. The reversal of 1235423455552 is 2555543245321.

It is a happy number.

It is a super-2 number, since 2×1235423455552² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 64777474 + ... + 64796542.

It is an arithmetic number, because the mean of its divisors is an integer number (25720471800).

Almost surely, 2^{1235423455552} 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 1235423455552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440346420800).

1235423455552 is an abundant number, since it is smaller than the sum of its proper divisors (1645269386048).

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

1235423455552 is a wasteful number, since it uses less digits than its factorization.

1235423455552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26184 (or 26174 counting only the distinct ones).

The product of its digits is 3600000, while the sum is 46.

The spelling of 1235423455552 in words is "one trillion, two hundred thirty-five billion, four hundred twenty-three million, four hundred fifty-five thousand, five hundred fifty-two".