8753747981 has 4 divisors (see below), whose sum is σ = 9549543264. Its totient is φ = 7957952700.

The previous prime is 8753747957. The next prime is 8753747983. The reversal of 8753747981 is 1897473578.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8753747981 - 2¹⁸ = 8753485837 is a prime.

It is a super-2 number, since 2×8753747981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8753747981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8753747983) 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 3 ways as a sum of consecutive naturals, for example, 397897625 + ... + 397897646.

It is an arithmetic number, because the mean of its divisors is an integer number (2387385816).

Almost surely, 2^8753747981 is an apocalyptic number.

It is an amenable number.

8753747981 is a deficient number, since it is larger than the sum of its proper divisors (795795283).

8753747981 is a wasteful number, since it uses less digits than its factorization.

8753747981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795795282.

The product of its digits is 11854080, while the sum is 59.

The square root of 8753747981 is about 93561.4663256193. The cubic root of 8753747981 is about 2060.9368269342.

The spelling of 8753747981 in words is "eight billion, seven hundred fifty-three million, seven hundred forty-seven thousand, nine hundred eighty-one".