406340427061 has 2 divisors, whose sum is σ = 406340427062. Its totient is φ = 406340427060.

The previous prime is 406340427029. The next prime is 406340427091. The reversal of 406340427061 is 160724043604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210755364561 + 195585062500 = 459081^2 + 442250^2 .

It is a cyclic number.

It is not a de Polignac number, because 406340427061 - 2⁵ = 406340427029 is a prime.

It is a super-2 number, since 2×406340427061² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 406340427061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406340427091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203170213530 + 203170213531.

It is an arithmetic number, because the mean of its divisors is an integer number (203170213531).

Almost surely, 2^406340427061 is an apocalyptic number.

It is an amenable number.

406340427061 is a deficient number, since it is larger than the sum of its proper divisors (1).

406340427061 is an equidigital number, since it uses as much as digits as its factorization.

406340427061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 406340427061 in words is "four hundred six billion, three hundred forty million, four hundred twenty-seven thousand, sixty-one".