2642404523220 has 144 divisors (see below), whose sum is σ = 9993093522048. Its totient is φ = 549071066880.

The previous prime is 2642404523191. The next prime is 2642404523243. The reversal of 2642404523220 is 223254042462.

2642404523220 is a `hidden beast` number, since 2 + 6 + 4 + 2 + 404 + 5 + 23 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 95310979 + ... + 95338698.

It is an arithmetic number, because the mean of its divisors is an integer number (69396482792).

Almost surely, 2^{2642404523220} is an apocalyptic number.

2642404523220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2642404523220 is an abundant number, since it is smaller than the sum of its proper divisors (7350688998828).

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

2642404523220 is a wasteful number, since it uses less digits than its factorization.

2642404523220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190649710 (or 190649705 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 2642404523220 its reverse (223254042462), we get a palindrome (2865658565682).

The spelling of 2642404523220 in words is "two trillion, six hundred forty-two billion, four hundred four million, five hundred twenty-three thousand, two hundred twenty".