7825479547 has 2 divisors, whose sum is σ = 7825479548. Its totient is φ = 7825479546.

The previous prime is 7825479499. The next prime is 7825479647. The reversal of 7825479547 is 7459745287.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7825479547 - 2⁷ = 7825479419 is a prime.

It is a super-3 number, since 3×7825479547³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 7825479491 and 7825479500.

It is not a weakly prime, because it can be changed into another prime (7825479047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3912739773 + 3912739774.

It is an arithmetic number, because the mean of its divisors is an integer number (3912739774).

Almost surely, 2^7825479547 is an apocalyptic number.

7825479547 is a deficient number, since it is larger than the sum of its proper divisors (1).

7825479547 is an equidigital number, since it uses as much as digits as its factorization.

7825479547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 58.

The square root of 7825479547 is about 88461.7405831470. The cubic root of 7825479547 is about 1985.3495734589.

The spelling of 7825479547 in words is "seven billion, eight hundred twenty-five million, four hundred seventy-nine thousand, five hundred forty-seven".