7864693452 has 216 divisors, whose sum is σ = 25484436432. Its totient is φ = 2022048000.

The previous prime is 7864693433. The next prime is 7864693453. The reversal of 7864693452 is 2543964687.

7864693452 is a `hidden beast` number, since 78 + 64 + 69 + 3 + 452 = 666.

It is not an unprimeable number, because it can be changed into a prime (7864693453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1957798 + ... + 1961810.

It is an arithmetic number, because the mean of its divisors is an integer number (117983502).

Almost surely, 2^7864693452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7864693452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12742218216).

7864693452 is an abundant number, since it is smaller than the sum of its proper divisors (17619742980).

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

7864693452 is a wasteful number, since it uses less digits than its factorization.

7864693452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149 (or 4137 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The square root of 7864693452 is about 88683.1069144513. The cubic root of 7864693452 is about 1988.6602812363.

The spelling of 7864693452 in words is "seven billion, eight hundred sixty-four million, six hundred ninety-three thousand, four hundred fifty-two".