19441291878055 has 4 divisors (see below), whose sum is σ = 23329550253672. Its totient is φ = 15553033502440.

The previous prime is 19441291878037. The next prime is 19441291878083. The reversal of 19441291878055 is 55087819214491.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 19441291878055 - 2³⁷ = 19303852924583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1944129187801 + ... + 1944129187810.

It is an arithmetic number, because the mean of its divisors is an integer number (5832387563418).

Almost surely, 2^{19441291878055} is an apocalyptic number.

19441291878055 is a deficient number, since it is larger than the sum of its proper divisors (3888258375617).

19441291878055 is an equidigital number, since it uses as much as digits as its factorization.

19441291878055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888258375616.

The product of its (nonzero) digits is 29030400, while the sum is 64.

The spelling of 19441291878055 in words is "nineteen trillion, four hundred forty-one billion, two hundred ninety-one million, eight hundred seventy-eight thousand, fifty-five".