18870968564452 has 24 divisors (see below), whose sum is σ = 33210401535360. Its totient is φ = 9382287852960.

The previous prime is 18870968564419. The next prime is 18870968564453. The reversal of 18870968564452 is 25446586907881.

It is a super-2 number, since 2×18870968564452² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18870968564453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13407013 + ... + 14747539.

It is an arithmetic number, because the mean of its divisors is an integer number (1383766730640).

Almost surely, 2^{18870968564452} is an apocalyptic number.

It is an amenable number.

18870968564452 is a deficient number, since it is larger than the sum of its proper divisors (14339432970908).

18870968564452 is a wasteful number, since it uses less digits than its factorization.

18870968564452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360371 (or 1360369 counting only the distinct ones).

The product of its (nonzero) digits is 928972800, while the sum is 73.

The spelling of 18870968564452 in words is "eighteen trillion, eight hundred seventy billion, nine hundred sixty-eight million, five hundred sixty-four thousand, four hundred fifty-two".