406868088628 has 6 divisors (see below), whose sum is σ = 712019155106. Its totient is φ = 203434044312.

The previous prime is 406868088623. The next prime is 406868088707. The reversal of 406868088628 is 826880868604.

It can be written as a sum of positive squares in only one way, i.e., 263581613604 + 143286475024 = 513402^2 + 378532^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 406868088628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406868088623) 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 as a sum of consecutive naturals, namely, 50858511075 + ... + 50858511082.

Almost surely, 2^406868088628 is an apocalyptic number.

It is an amenable number.

406868088628 is a deficient number, since it is larger than the sum of its proper divisors (305151066478).

406868088628 is a wasteful number, since it uses less digits than its factorization.

406868088628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101717022161 (or 101717022159 counting only the distinct ones).

The product of its (nonzero) digits is 56623104, while the sum is 64.

The spelling of 406868088628 in words is "four hundred six billion, eight hundred sixty-eight million, eighty-eight thousand, six hundred twenty-eight".