406642046451 has 16 divisors (see below), whose sum is σ = 544994224896. Its totient is φ = 269695099296.

The previous prime is 406642046389. The next prime is 406642046491. The reversal of 406642046451 is 154640246604.

It is not a de Polignac number, because 406642046451 - 2⁷ = 406642046323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406642046491) 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 15 ways as a sum of consecutive naturals, for example, 226776 + ... + 929898.

It is an arithmetic number, because the mean of its divisors is an integer number (34062139056).

Almost surely, 2^406642046451 is an apocalyptic number.

406642046451 is a deficient number, since it is larger than the sum of its proper divisors (138352178445).

406642046451 is a wasteful number, since it uses less digits than its factorization.

406642046451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704122.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 406642046451 in words is "four hundred six billion, six hundred forty-two million, forty-six thousand, four hundred fifty-one".