426998628061 has 2 divisors, whose sum is σ = 426998628062. Its totient is φ = 426998628060.

The previous prime is 426998627947. The next prime is 426998628143. The reversal of 426998628061 is 160826899624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405935911161 + 21062716900 = 637131^2 + 145130^2 .

It is a cyclic number.

It is not a de Polignac number, because 426998628061 - 2²⁵ = 426965073629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426998628761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213499314030 + 213499314031.

It is an arithmetic number, because the mean of its divisors is an integer number (213499314031).

Almost surely, 2^426998628061 is an apocalyptic number.

It is an amenable number.

426998628061 is a deficient number, since it is larger than the sum of its proper divisors (1).

426998628061 is an equidigital number, since it uses as much as digits as its factorization.

426998628061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 426998628061 in words is "four hundred twenty-six billion, nine hundred ninety-eight million, six hundred twenty-eight thousand, sixty-one".