7974280123 has 2 divisors, whose sum is σ = 7974280124. Its totient is φ = 7974280122.

The previous prime is 7974280121. The next prime is 7974280141. The reversal of 7974280123 is 3210824797.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7974280123 - 2¹ = 7974280121 is a prime.

Together with 7974280121, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7974280123.

It is not a weakly prime, because it can be changed into another prime (7974280121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3987140061 + 3987140062.

It is an arithmetic number, because the mean of its divisors is an integer number (3987140062).

Almost surely, 2^7974280123 is an apocalyptic number.

7974280123 is a deficient number, since it is larger than the sum of its proper divisors (1).

7974280123 is an equidigital number, since it uses as much as digits as its factorization.

7974280123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 7974280123 is about 89298.8248690877. The cubic root of 7974280123 is about 1997.8543758884.

The spelling of 7974280123 in words is "seven billion, nine hundred seventy-four million, two hundred eighty thousand, one hundred twenty-three".