2478389743 has 2 divisors, whose sum is σ = 2478389744. Its totient is φ = 2478389742.

The previous prime is 2478389731. The next prime is 2478389777. The reversal of 2478389743 is 3479838742.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2478389743 is a prime.

It is a super-2 number, since 2×2478389743² = 12284831436415212098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2478389713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239194871 + 1239194872.

It is an arithmetic number, because the mean of its divisors is an integer number (1239194872).

Almost surely, 2^2478389743 is an apocalyptic number.

2478389743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478389743 is an equidigital number, since it uses as much as digits as its factorization.

2478389743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8128512, while the sum is 55.

The square root of 2478389743 is about 49783.4283974095. The cubic root of 2478389743 is about 1353.2868684587.

The spelling of 2478389743 in words is "two billion, four hundred seventy-eight million, three hundred eighty-nine thousand, seven hundred forty-three".