445904233878 has 8 divisors (see below), whose sum is σ = 891808467768. Its totient is φ = 148634744624.

The previous prime is 445904233877. The next prime is 445904233883. The reversal of 445904233878 is 878332409544.

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

445904233878 is an admirable number.

It is a super-2 number, since 2×445904233878² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445904233877) 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 3 ways as a sum of consecutive naturals, for example, 37158686151 + ... + 37158686162.

It is an arithmetic number, because the mean of its divisors is an integer number (111476058471).

Almost surely, 2^445904233878 is an apocalyptic number.

445904233878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

445904233878 is a wasteful number, since it uses less digits than its factorization.

445904233878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74317372318.

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 445904233878 in words is "four hundred forty-five billion, nine hundred four million, two hundred thirty-three thousand, eight hundred seventy-eight".