7427011465421 has 2 divisors, whose sum is σ = 7427011465422. Its totient is φ = 7427011465420.

The previous prime is 7427011465411. The next prime is 7427011465483. The reversal of 7427011465421 is 1245641107247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5733007696900 + 1694003768521 = 2394370^2 + 1301539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7427011465421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7427011465411) 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, 3713505732710 + 3713505732711.

It is an arithmetic number, because the mean of its divisors is an integer number (3713505732711).

Almost surely, 2^{7427011465421} is an apocalyptic number.

It is an amenable number.

7427011465421 is a deficient number, since it is larger than the sum of its proper divisors (1).

7427011465421 is an equidigital number, since it uses as much as digits as its factorization.

7427011465421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 7427011465421 in words is "seven trillion, four hundred twenty-seven billion, eleven million, four hundred sixty-five thousand, four hundred twenty-one".