406766497429 has 4 divisors (see below), whose sum is σ = 406768341420. Its totient is φ = 406764653440.

The previous prime is 406766497411. The next prime is 406766497439. The reversal of 406766497429 is 924794667604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 283987739025 + 122778758404 = 532905^2 + 350398^2 .

It is a cyclic number.

It is not a de Polignac number, because 406766497429 - 2⁷ = 406766497301 is a prime.

It is a super-2 number, since 2×406766497429² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406766497409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537724 + ... + 1050085.

It is an arithmetic number, because the mean of its divisors is an integer number (101692085355).

Almost surely, 2^406766497429 is an apocalyptic number.

It is an amenable number.

406766497429 is a deficient number, since it is larger than the sum of its proper divisors (1843991).

406766497429 is a wasteful number, since it uses less digits than its factorization.

406766497429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843990.

The product of its (nonzero) digits is 109734912, while the sum is 64.

The spelling of 406766497429 in words is "four hundred six billion, seven hundred sixty-six million, four hundred ninety-seven thousand, four hundred twenty-nine".