7420123747 has 2 divisors, whose sum is σ = 7420123748. Its totient is φ = 7420123746.

The previous prime is 7420123729. The next prime is 7420123759. The reversal of 7420123747 is 7473210247.

It is a strong prime.

It is an emirp because it is prime and its reverse (7473210247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7420123747 - 2⁷ = 7420123619 is a prime.

It is not a weakly prime, because it can be changed into another prime (7420123727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710061873 + 3710061874.

It is an arithmetic number, because the mean of its divisors is an integer number (3710061874).

Almost surely, 2^7420123747 is an apocalyptic number.

7420123747 is a deficient number, since it is larger than the sum of its proper divisors (1).

7420123747 is an equidigital number, since it uses as much as digits as its factorization.

7420123747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 7420123747 is about 86140.1401612512. The cubic root of 7420123747 is about 1950.4600051733.

The spelling of 7420123747 in words is "seven billion, four hundred twenty million, one hundred twenty-three thousand, seven hundred forty-seven".