7877572452 has 36 divisors (see below), whose sum is σ = 20239196796. Its totient is φ = 2582809920.

The previous prime is 7877572447. The next prime is 7877572517. The reversal of 7877572452 is 2542757787.

7877572452 is a `hidden beast` number, since 78 + 77 + 57 + 2 + 452 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4644967716 + 3232604736 = 68154^2 + 56856^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×7877572452² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1791423 + ... + 1795814.

It is an arithmetic number, because the mean of its divisors is an integer number (562199911).

Almost surely, 2^7877572452 is an apocalyptic number.

It is an amenable number.

7877572452 is an abundant number, since it is smaller than the sum of its proper divisors (12361624344).

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

7877572452 is a wasteful number, since it uses less digits than its factorization.

7877572452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587308 (or 3587303 counting only the distinct ones).

The product of its digits is 7683200, while the sum is 54.

The square root of 7877572452 is about 88755.6896880420. The cubic root of 7877572452 is about 1989.7452138808.

The spelling of 7877572452 in words is "seven billion, eight hundred seventy-seven million, five hundred seventy-two thousand, four hundred fifty-two".