445540836723 has 32 divisors (see below), whose sum is σ = 607200422400. Its totient is φ = 290511048960.

The previous prime is 445540836679. The next prime is 445540836809. The reversal of 445540836723 is 327638045544.

It is not a de Polignac number, because 445540836723 - 2²¹ = 445538739571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445540835723) 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 31 ways as a sum of consecutive naturals, for example, 86560636 + ... + 86565782.

It is an arithmetic number, because the mean of its divisors is an integer number (18975013200).

Almost surely, 2^445540836723 is an apocalyptic number.

445540836723 is a deficient number, since it is larger than the sum of its proper divisors (161659585677).

445540836723 is a wasteful number, since it uses less digits than its factorization.

445540836723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787.

The product of its (nonzero) digits is 9676800, while the sum is 51.

The spelling of 445540836723 in words is "four hundred forty-five billion, five hundred forty million, eight hundred thirty-six thousand, seven hundred twenty-three".