7812854252 has 12 divisors (see below), whose sum is σ = 15625708560. Its totient is φ = 3348366096.

The previous prime is 7812854201. The next prime is 7812854263. The reversal of 7812854252 is 2524582187.

7812854252 is an admirable number.

It is a super-2 number, since 2×7812854252² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 139515227 + ... + 139515282.

It is an arithmetic number, because the mean of its divisors is an integer number (1302142380).

Almost surely, 2^7812854252 is an apocalyptic number.

It is an amenable number.

7812854252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7812854252 is a wasteful number, since it uses less digits than its factorization.

7812854252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279030520 (or 279030518 counting only the distinct ones).

The product of its digits is 358400, while the sum is 44.

The square root of 7812854252 is about 88390.3515775336. The cubic root of 7812854252 is about 1984.2813059735.

The spelling of 7812854252 in words is "seven billion, eight hundred twelve million, eight hundred fifty-four thousand, two hundred fifty-two".