2478996547 has 4 divisors (see below), whose sum is σ = 2484592920. Its totient is φ = 2473400176.

The previous prime is 2478996539. The next prime is 2478996587. The reversal of 2478996547 is 7456998742.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2478996547 - 2³ = 2478996539 is a prime.

It is a super-2 number, since 2×2478996547² = 12290847760075846418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2478996517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2797522 + ... + 2798407.

It is an arithmetic number, because the mean of its divisors is an integer number (621148230).

Almost surely, 2^2478996547 is an apocalyptic number.

2478996547 is a deficient number, since it is larger than the sum of its proper divisors (5596373).

2478996547 is an equidigital number, since it uses as much as digits as its factorization.

2478996547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5596372.

The product of its digits is 30481920, while the sum is 61.

The square root of 2478996547 is about 49789.5224620602. The cubic root of 2478996547 is about 1353.3973047985.

The spelling of 2478996547 in words is "two billion, four hundred seventy-eight million, nine hundred ninety-six thousand, five hundred forty-seven".