19153266532972 has 48 divisors (see below), whose sum is σ = 39391178400000. Its totient is φ = 8033655216960.

The previous prime is 19153266532943. The next prime is 19153266532979. The reversal of 19153266532972 is 27923566235191.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19153266532972.

It is not an unprimeable number, because it can be changed into a prime (19153266532979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3867222 + ... + 7298077.

It is an arithmetic number, because the mean of its divisors is an integer number (820649550000).

Almost surely, 2^{19153266532972} is an apocalyptic number.

It is an amenable number.

19153266532972 is an abundant number, since it is smaller than the sum of its proper divisors (20237911867028).

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

19153266532972 is a wasteful number, since it uses less digits than its factorization.

19153266532972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11168326 (or 11168324 counting only the distinct ones).

The product of its digits is 36741600, while the sum is 61.

The spelling of 19153266532972 in words is "nineteen trillion, one hundred fifty-three billion, two hundred sixty-six million, five hundred thirty-two thousand, nine hundred seventy-two".