405967149997 has 2 divisors, whose sum is σ = 405967149998. Its totient is φ = 405967149996.

The previous prime is 405967149977. The next prime is 405967150031. The reversal of 405967149997 is 799941769504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358281256356 + 47685893641 = 598566^2 + 218371^2 .

It is a cyclic number.

It is not a de Polignac number, because 405967149997 - 2²³ = 405958761389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405967149937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202983574998 + 202983574999.

It is an arithmetic number, because the mean of its divisors is an integer number (202983574999).

Almost surely, 2^405967149997 is an apocalyptic number.

It is an amenable number.

405967149997 is a deficient number, since it is larger than the sum of its proper divisors (1).

405967149997 is an equidigital number, since it uses as much as digits as its factorization.

405967149997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 154314720, while the sum is 70.

The spelling of 405967149997 in words is "four hundred five billion, nine hundred sixty-seven million, one hundred forty-nine thousand, nine hundred ninety-seven".