9672642020844 has 96 divisors (see below), whose sum is σ = 27474379994880. Its totient is φ = 2918523715200.

The previous prime is 9672642020807. The next prime is 9672642020861. The reversal of 9672642020844 is 4480202462769.

It is a happy number.

9672642020844 is a `hidden beast` number, since 9 + 6 + 7 + 2 + 6 + 420 + 208 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17195202 + ... + 17748809.

It is an arithmetic number, because the mean of its divisors is an integer number (286191458280).

Almost surely, 2^{9672642020844} is an apocalyptic number.

It is an amenable number.

9672642020844 is an abundant number, since it is smaller than the sum of its proper divisors (17801737974036).

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

9672642020844 is a wasteful number, since it uses less digits than its factorization.

9672642020844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34944268 (or 34944260 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 54.

The spelling of 9672642020844 in words is "nine trillion, six hundred seventy-two billion, six hundred forty-two million, twenty thousand, eight hundred forty-four".