2154921260073 has 8 divisors (see below), whose sum is σ = 2913696351936. Its totient is φ = 1416380170800.

The previous prime is 2154921260059. The next prime is 2154921260117. The reversal of 2154921260073 is 3700621294512.

It is a happy number.

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

It is not a de Polignac number, because 2154921260073 - 2²⁶ = 2154854151209 is a prime.

It is a super-2 number, since 2×2154921260073² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2154921267073) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5058500398 + ... + 5058500823.

It is an arithmetic number, because the mean of its divisors is an integer number (364212043992).

Almost surely, 2^{2154921260073} is an apocalyptic number.

It is an amenable number.

2154921260073 is a deficient number, since it is larger than the sum of its proper divisors (758775091863).

2154921260073 is a wasteful number, since it uses less digits than its factorization.

2154921260073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10117001295.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 2154921260073 in words is "two trillion, one hundred fifty-four billion, nine hundred twenty-one million, two hundred sixty thousand, seventy-three".