406768937544 has 48 divisors (see below), whose sum is σ = 1101840955020. Its totient is φ = 135568097280.

The previous prime is 406768937513. The next prime is 406768937557. The reversal of 406768937544 is 445739867604.

It is a happy number.

406768937544 is a `hidden beast` number, since 4 + 0 + 6 + 7 + 6 + 89 + 3 + 7 + 544 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 387095508900 + 19673428644 = 622170^2 + 140262^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10504 + ... + 902024.

Almost surely, 2^406768937544 is an apocalyptic number.

It is an amenable number.

406768937544 is an abundant number, since it is smaller than the sum of its proper divisors (695072017476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406768937544 is a wasteful number, since it uses less digits than its factorization.

406768937544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897870 (or 897863 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 63.

The spelling of 406768937544 in words is "four hundred six billion, seven hundred sixty-eight million, nine hundred thirty-seven thousand, five hundred forty-four".