445772854218638 has 8 divisors (see below), whose sum is σ = 703851875082120. Its totient is φ = 211155562524600.

The previous prime is 445772854218623. The next prime is 445772854218641. The reversal of 445772854218638 is 836812458277544.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5865432292313 + ... + 5865432292388.

It is an arithmetic number, because the mean of its divisors is an integer number (87981484385265).

Almost surely, 2^{445772854218638} is an apocalyptic number.

445772854218638 is a deficient number, since it is larger than the sum of its proper divisors (258079020863482).

445772854218638 is a wasteful number, since it uses less digits than its factorization.

445772854218638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11730864584722.

The product of its digits is 2890137600, while the sum is 74.

The spelling of 445772854218638 in words is "four hundred forty-five trillion, seven hundred seventy-two billion, eight hundred fifty-four million, two hundred eighteen thousand, six hundred thirty-eight".