9812758453772 has 12 divisors (see below), whose sum is σ = 18182464193880. Its totient is φ = 4617768684096.

The previous prime is 9812758453759. The next prime is 9812758453781. The reversal of 9812758453772 is 2773548572189.

It is a happy number.

It is a super-2 number, since 2×9812758453772² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (68), and also a Moran number because the ratio is a prime number: 144305271379 = 9812758453772 / (9 + 8 + 1 + 2 + 7 + 5 + 8 + 4 + 5 + 3 + 7 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72152635622 + ... + 72152635757.

It is an arithmetic number, because the mean of its divisors is an integer number (1515205349490).

Almost surely, 2^{9812758453772} is an apocalyptic number.

It is an amenable number.

9812758453772 is a deficient number, since it is larger than the sum of its proper divisors (8369705740108).

9812758453772 is a wasteful number, since it uses less digits than its factorization.

9812758453772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144305271400 (or 144305271398 counting only the distinct ones).

The product of its digits is 237081600, while the sum is 68.

The spelling of 9812758453772 in words is "nine trillion, eight hundred twelve billion, seven hundred fifty-eight million, four hundred fifty-three thousand, seven hundred seventy-two".