406855686074 has 8 divisors (see below), whose sum is σ = 620627317920. Its totient is φ = 199979913436.

The previous prime is 406855686049. The next prime is 406855686077. The reversal of 406855686074 is 470686558604.

It is a happy number.

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

It is a super-4 number, since 4×406855686074⁴ (a number of 48 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is not an unprimeable number, because it can be changed into a prime (406855686077) 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, 1723964654 + ... + 1723964889.

It is an arithmetic number, because the mean of its divisors is an integer number (77578414740).

Almost surely, 2^406855686074 is an apocalyptic number.

406855686074 is a deficient number, since it is larger than the sum of its proper divisors (213771631846).

406855686074 is a wasteful number, since it uses less digits than its factorization.

406855686074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447929604.

The product of its (nonzero) digits is 38707200, while the sum is 59.

The spelling of 406855686074 in words is "four hundred six billion, eight hundred fifty-five million, six hundred eighty-six thousand, seventy-four".