1247452817352 has 128 divisors (see below), whose sum is σ = 3651921020160. Its totient is φ = 347642081280.

The previous prime is 1247452817327. The next prime is 1247452817431. The reversal of 1247452817352 is 2537182547421.

It is a super-2 number, since 2×1247452817352² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1247452817295 and 1247452817304.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33960148 + ... + 33996860.

It is an arithmetic number, because the mean of its divisors is an integer number (28530632970).

Almost surely, 2^{1247452817352} is an apocalyptic number.

1247452817352 is a gapful number since it is divisible by the number (12) 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 1247452817352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1825960510080).

1247452817352 is an abundant number, since it is smaller than the sum of its proper divisors (2404468202808).

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

1247452817352 is a wasteful number, since it uses less digits than its factorization.

1247452817352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41703 (or 41699 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 51.

The spelling of 1247452817352 in words is "one trillion, two hundred forty-seven billion, four hundred fifty-two million, eight hundred seventeen thousand, three hundred fifty-two".