7825978248 has 64 divisors (see below), whose sum is σ = 22466937600. Its totient is φ = 2246690880.

The previous prime is 7825978243. The next prime is 7825978261. The reversal of 7825978248 is 8428795287.

It is a super-2 number, since 2×7825978248² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7825978191 and 7825978200.

It is not an unprimeable number, because it can be changed into a prime (7825978243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 775086 + ... + 785117.

It is an arithmetic number, because the mean of its divisors is an integer number (351045900).

Almost surely, 2^7825978248 is an apocalyptic number.

It is an amenable number.

7825978248 is an abundant number, since it is smaller than the sum of its proper divisors (14640959352).

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

7825978248 is a wasteful number, since it uses less digits than its factorization.

7825978248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560242 (or 1560238 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 60.

The square root of 7825978248 is about 88464.5592765826. The cubic root of 7825978248 is about 1985.3917465841.

The spelling of 7825978248 in words is "seven billion, eight hundred twenty-five million, nine hundred seventy-eight thousand, two hundred forty-eight".