53438667191 has 8 divisors (see below), whose sum is σ = 65770667424. Its totient is φ = 42281143200.

The previous prime is 53438667157. The next prime is 53438667197. The reversal of 53438667191 is 19176683435.

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 53438667191 - 2⁶ = 53438667127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53438667197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293618960 + ... + 293619141.

It is an arithmetic number, because the mean of its divisors is an integer number (8221333428).

Almost surely, 2^53438667191 is an apocalyptic number.

53438667191 is a deficient number, since it is larger than the sum of its proper divisors (12332000233).

53438667191 is a wasteful number, since it uses less digits than its factorization.

53438667191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587238121.

The product of its digits is 3265920, while the sum is 53.

The spelling of 53438667191 in words is "fifty-three billion, four hundred thirty-eight million, six hundred sixty-seven thousand, one hundred ninety-one".