408212100077 has 8 divisors (see below), whose sum is σ = 422307027000. Its totient is φ = 394118416384.

The previous prime is 408212100017. The next prime is 408212100083. The reversal of 408212100077 is 770001212804.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 101900769961 + 306311330116 = 319219^2 + 553454^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 408212100077 - 2⁶ = 408212100013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408212100017) 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 7 ways as a sum of consecutive naturals, for example, 383549 + ... + 981597.

It is an arithmetic number, because the mean of its divisors is an integer number (52788378375).

Almost surely, 2^408212100077 is an apocalyptic number.

It is an amenable number.

408212100077 is a deficient number, since it is larger than the sum of its proper divisors (14094926923).

408212100077 is a wasteful number, since it uses less digits than its factorization.

408212100077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621615.

The product of its (nonzero) digits is 6272, while the sum is 32.

The spelling of 408212100077 in words is "four hundred eight billion, two hundred twelve million, one hundred thousand, seventy-seven".