7812876552 has 128 divisors (see below), whose sum is σ = 21644582400. Its totient is φ = 2335039488.

The previous prime is 7812876503. The next prime is 7812876559. The reversal of 7812876552 is 2556782187.

It is a super-2 number, since 2×7812876552² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7812876495 and 7812876504.

It is not an unprimeable number, because it can be changed into a prime (7812876559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2007024 + ... + 2010912.

It is an arithmetic number, because the mean of its divisors is an integer number (169098300).

Almost surely, 2^7812876552 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 7812876552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10822291200).

7812876552 is an abundant number, since it is smaller than the sum of its proper divisors (13831705848).

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

7812876552 is a wasteful number, since it uses less digits than its factorization.

7812876552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095 (or 4091 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 51.

The square root of 7812876552 is about 88390.4777224334. The cubic root of 7812876552 is about 1984.2831938636.

The spelling of 7812876552 in words is "seven billion, eight hundred twelve million, eight hundred seventy-six thousand, five hundred fifty-two".