7881161452 has 12 divisors (see below), whose sum is σ = 14267620080. Its totient is φ = 3804698576.

The previous prime is 7881161429. The next prime is 7881161459. The reversal of 7881161452 is 2541611887.

It is a super-2 number, since 2×7881161452² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7881161399 and 7881161408.

It is not an unprimeable number, because it can be changed into a prime (7881161459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33970408 + ... + 33970639.

It is an arithmetic number, because the mean of its divisors is an integer number (1188968340).

Almost surely, 2^7881161452 is an apocalyptic number.

It is an amenable number.

7881161452 is a deficient number, since it is larger than the sum of its proper divisors (6386458628).

7881161452 is a wasteful number, since it uses less digits than its factorization.

7881161452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67941080 (or 67941078 counting only the distinct ones).

The product of its digits is 107520, while the sum is 43.

The square root of 7881161452 is about 88775.9058078260. The cubic root of 7881161452 is about 1990.0473421226.

The spelling of 7881161452 in words is "seven billion, eight hundred eighty-one million, one hundred sixty-one thousand, four hundred fifty-two".