406768937543 has 4 divisors (see below), whose sum is σ = 410368662768. Its totient is φ = 403169212320.

The previous prime is 406768937513. The next prime is 406768937557. The reversal of 406768937543 is 345739867604.

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

It is a cyclic number.

It is not a de Polignac number, because 406768937543 - 2¹² = 406768933447 is a prime.

It is a super-2 number, since 2×406768937543² (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 (406768937513) 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, 1799862443 + ... + 1799862668.

It is an arithmetic number, because the mean of its divisors is an integer number (102592165692).

Almost surely, 2^406768937543 is an apocalyptic number.

406768937543 is a deficient number, since it is larger than the sum of its proper divisors (3599725225).

406768937543 is a wasteful number, since it uses less digits than its factorization.

406768937543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3599725224.

The product of its (nonzero) digits is 91445760, while the sum is 62.

The spelling of 406768937543 in words is "four hundred six billion, seven hundred sixty-eight million, nine hundred thirty-seven thousand, five hundred forty-three".