2155442062349 has 8 divisors (see below), whose sum is σ = 2307342084000. Its totient is φ = 2007387610992.

The previous prime is 2155442062309. The next prime is 2155442062351. The reversal of 2155442062349 is 9432602445512.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2155442062349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155442062309) 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, 961391414 + ... + 961393655.

It is an arithmetic number, because the mean of its divisors is an integer number (288417760500).

Almost surely, 2^{2155442062349} is an apocalyptic number.

It is an amenable number.

2155442062349 is a deficient number, since it is larger than the sum of its proper divisors (151900021651).

2155442062349 is a wasteful number, since it uses less digits than its factorization.

2155442062349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922785147.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 2155442062349 in words is "two trillion, one hundred fifty-five billion, four hundred forty-two million, sixty-two thousand, three hundred forty-nine".