7426667497 has 2 divisors, whose sum is σ = 7426667498. Its totient is φ = 7426667496.

The previous prime is 7426667429. The next prime is 7426667537. The reversal of 7426667497 is 7947666247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6012606681 + 1414060816 = 77541^2 + 37604^2 .

It is an emirp because it is prime and its reverse (7947666247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7426667497 - 2¹⁵ = 7426634729 is a prime.

It is a super-2 number, since 2×7426667497² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7426667407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3713333748 + 3713333749.

It is an arithmetic number, because the mean of its divisors is an integer number (3713333749).

Almost surely, 2^7426667497 is an apocalyptic number.

It is an amenable number.

7426667497 is a deficient number, since it is larger than the sum of its proper divisors (1).

7426667497 is an equidigital number, since it uses as much as digits as its factorization.

7426667497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21337344, while the sum is 58.

The square root of 7426667497 is about 86178.1149538559. The cubic root of 7426667497 is about 1951.0332019273.

The spelling of 7426667497 in words is "seven billion, four hundred twenty-six million, six hundred sixty-seven thousand, four hundred ninety-seven".