450085377779 has 4 divisors (see below), whose sum is σ = 450104870784. Its totient is φ = 450065884776.

The previous prime is 450085377761. The next prime is 450085377793. The reversal of 450085377779 is 977773580054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 450085377779 - 2³⁶ = 381365901043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450085377719) 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, 9711827 + ... + 9758060.

It is an arithmetic number, because the mean of its divisors is an integer number (112526217696).

Almost surely, 2^450085377779 is an apocalyptic number.

450085377779 is a deficient number, since it is larger than the sum of its proper divisors (19493005).

450085377779 is a wasteful number, since it uses less digits than its factorization.

450085377779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19493004.

The product of its (nonzero) digits is 51861600, while the sum is 62.

The spelling of 450085377779 in words is "four hundred fifty billion, eighty-five million, three hundred seventy-seven thousand, seven hundred seventy-nine".