1217892714252 has 24 divisors (see below), whose sum is σ = 2888335728432. Its totient is φ = 399309086400.

The previous prime is 1217892714251. The next prime is 1217892714253. The reversal of 1217892714252 is 2524172987121.

It is an interprime number because it is at equal distance from previous prime (1217892714251) and next prime (1217892714253).

It is a super-3 number, since 3×1217892714252³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1217892714195 and 1217892714204.

It is not an unprimeable number, because it can be changed into a prime (1217892714251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831893199 + ... + 831894662.

It is an arithmetic number, because the mean of its divisors is an integer number (120347322018).

Almost surely, 2^{1217892714252} is an apocalyptic number.

1217892714252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1217892714252 is an abundant number, since it is smaller than the sum of its proper divisors (1670443014180).

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

1217892714252 is a wasteful number, since it uses less digits than its factorization.

1217892714252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663787929 (or 1663787927 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 51.

The spelling of 1217892714252 in words is "one trillion, two hundred seventeen billion, eight hundred ninety-two million, seven hundred fourteen thousand, two hundred fifty-two".