7420669261 has 2 divisors, whose sum is σ = 7420669262. Its totient is φ = 7420669260.

The previous prime is 7420669211. The next prime is 7420669327. The reversal of 7420669261 is 1629660247.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3822948900 + 3597720361 = 61830^2 + 59981^2 .

It is a cyclic number.

It is not a de Polignac number, because 7420669261 - 2¹¹ = 7420667213 is a prime.

It is a super-2 number, since 2×7420669261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7420669211) 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, 3710334630 + 3710334631.

It is an arithmetic number, because the mean of its divisors is an integer number (3710334631).

Almost surely, 2^7420669261 is an apocalyptic number.

It is an amenable number.

7420669261 is a deficient number, since it is larger than the sum of its proper divisors (1).

7420669261 is an equidigital number, since it uses as much as digits as its factorization.

7420669261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 7420669261 is about 86143.3065362597. The cubic root of 7420669261 is about 1950.5078020925.

The spelling of 7420669261 in words is "seven billion, four hundred twenty million, six hundred sixty-nine thousand, two hundred sixty-one".