8455442791020 has 48 divisors (see below), whose sum is σ = 23941253760480. Its totient is φ = 2229450082816.

The previous prime is 8455442791007. The next prime is 8455442791021. The reversal of 8455442791020 is 201972445548.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8455442791021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 791702787 + ... + 791713466.

It is an arithmetic number, because the mean of its divisors is an integer number (498776120010).

Almost surely, 2^{8455442791020} is an apocalyptic number.

It is an amenable number.

8455442791020 is an abundant number, since it is smaller than the sum of its proper divisors (15485810969460).

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

8455442791020 is a wasteful number, since it uses less digits than its factorization.

8455442791020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583416354 (or 1583416352 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 8455442791020 in words is "eight trillion, four hundred fifty-five billion, four hundred forty-two million, seven hundred ninety-one thousand, twenty".