2642022551521 has 8 divisors (see below), whose sum is σ = 2649872381184. Its totient is φ = 2634174078480.

The previous prime is 2642022551461. The next prime is 2642022551533. The reversal of 2642022551521 is 1251552202462.

2642022551521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2642022551521 - 2³³ = 2633432616929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642022551561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3630511 + ... + 4297051.

It is an arithmetic number, because the mean of its divisors is an integer number (331234047648).

Almost surely, 2^{2642022551521} is an apocalyptic number.

It is an amenable number.

2642022551521 is a deficient number, since it is larger than the sum of its proper divisors (7849829663).

2642022551521 is a wasteful number, since it uses less digits than its factorization.

2642022551521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678311.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 2642022551521 its reverse (1251552202462), we get a palindrome (3893574753983).

The spelling of 2642022551521 in words is "two trillion, six hundred forty-two billion, twenty-two million, five hundred fifty-one thousand, five hundred twenty-one".