436400979669 has 16 divisors (see below), whose sum is σ = 660275715840. Its totient is φ = 284743900800.

The previous prime is 436400979659. The next prime is 436400979683. The reversal of 436400979669 is 966979004634.

It is not a de Polignac number, because 436400979669 - 2¹² = 436400975573 is a prime.

It is a super-2 number, since 2×436400979669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (436400979659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171945532 + ... + 171948069.

It is an arithmetic number, because the mean of its divisors is an integer number (41267232240).

Almost surely, 2^436400979669 is an apocalyptic number.

It is an amenable number.

436400979669 is a deficient number, since it is larger than the sum of its proper divisors (223874736171).

436400979669 is a wasteful number, since it uses less digits than its factorization.

436400979669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343893657 (or 343893651 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 63.

The spelling of 436400979669 in words is "four hundred thirty-six billion, four hundred million, nine hundred seventy-nine thousand, six hundred sixty-nine".