2478792451 has 4 divisors (see below), whose sum is σ = 2478913192. Its totient is φ = 2478671712.

The previous prime is 2478792419. The next prime is 2478792493. The reversal of 2478792451 is 1542978742.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2478792451 - 2⁵ = 2478792419 is a prime.

It is a super-2 number, since 2×2478792451² = 12288824030269174802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2478792395 and 2478792404.

It is not an unprimeable number, because it can be changed into a prime (2478292451) by changing a digit.

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, 21030 + ... + 73483.

It is an arithmetic number, because the mean of its divisors is an integer number (619728298).

Almost surely, 2^2478792451 is an apocalyptic number.

2478792451 is a deficient number, since it is larger than the sum of its proper divisors (120741).

2478792451 is an equidigital number, since it uses as much as digits as its factorization.

2478792451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120740.

The product of its digits is 1128960, while the sum is 49.

The square root of 2478792451 is about 49787.4728320287. The cubic root of 2478792451 is about 1353.3601620068.

The spelling of 2478792451 in words is "two billion, four hundred seventy-eight million, seven hundred ninety-two thousand, four hundred fifty-one".