8629905061 has 2 divisors, whose sum is σ = 8629905062. Its totient is φ = 8629905060.

The previous prime is 8629904977. The next prime is 8629905071. The reversal of 8629905061 is 1605099268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4958272225 + 3671632836 = 70415^2 + 60594^2 .

It is a cyclic number.

It is not a de Polignac number, because 8629905061 - 2¹¹ = 8629903013 is a prime.

It is a super-2 number, since 2×8629905061² (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 (8629905071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4314952530 + 4314952531.

It is an arithmetic number, because the mean of its divisors is an integer number (4314952531).

Almost surely, 2^8629905061 is an apocalyptic number.

It is an amenable number.

8629905061 is a deficient number, since it is larger than the sum of its proper divisors (1).

8629905061 is an equidigital number, since it uses as much as digits as its factorization.

8629905061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 8629905061 is about 92897.2823122399. The cubic root of 8629905061 is about 2051.1716531310.

The spelling of 8629905061 in words is "eight billion, six hundred twenty-nine million, nine hundred five thousand, sixty-one".