2473278421 has 2 divisors, whose sum is σ = 2473278422. Its totient is φ = 2473278420.

The previous prime is 2473278413. The next prime is 2473278463. The reversal of 2473278421 is 1248723742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2260527025 + 212751396 = 47545^2 + 14586^2 .

It is a cyclic number.

It is not a de Polignac number, because 2473278421 - 2³ = 2473278413 is a prime.

It is a super-2 number, since 2×2473278421² = 12234212295568506482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2473278491) 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 as a sum of consecutive naturals, namely, 1236639210 + 1236639211.

It is an arithmetic number, because the mean of its divisors is an integer number (1236639211).

Almost surely, 2^2473278421 is an apocalyptic number.

It is an amenable number.

2473278421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2473278421 is an equidigital number, since it uses as much as digits as its factorization.

2473278421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 40.

The square root of 2473278421 is about 49732.0663254605. The cubic root of 2473278421 is about 1352.3559084026.

The spelling of 2473278421 in words is "two billion, four hundred seventy-three million, two hundred seventy-eight thousand, four hundred twenty-one".