2478148923469 has 2 divisors, whose sum is σ = 2478148923470. Its totient is φ = 2478148923468.

The previous prime is 2478148923461. The next prime is 2478148923473. The reversal of 2478148923469 is 9643298418742.

2478148923469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1886672567844 + 591476355625 = 1373562^2 + 769075^2 .

It is a cyclic number.

It is not a de Polignac number, because 2478148923469 - 2³ = 2478148923461 is a prime.

It is a super-2 number, since 2×2478148923469² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2478148923461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239074461734 + 1239074461735.

It is an arithmetic number, because the mean of its divisors is an integer number (1239074461735).

Almost surely, 2^{2478148923469} is an apocalyptic number.

It is an amenable number.

2478148923469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478148923469 is an equidigital number, since it uses as much as digits as its factorization.

2478148923469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 167215104, while the sum is 67.

The spelling of 2478148923469 in words is "two trillion, four hundred seventy-eight billion, one hundred forty-eight million, nine hundred twenty-three thousand, four hundred sixty-nine".