54071079591 has 4 divisors (see below), whose sum is σ = 72094772792. Its totient is φ = 36047386392.

The previous prime is 54071079551. The next prime is 54071079611. The reversal of 54071079591 is 19597017045.

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

It is not a de Polignac number, because 54071079591 - 2⁷ = 54071079463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54071079591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54071079521) 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 3 ways as a sum of consecutive naturals, for example, 9011846596 + ... + 9011846601.

It is an arithmetic number, because the mean of its divisors is an integer number (18023693198).

Almost surely, 2^54071079591 is an apocalyptic number.

54071079591 is a deficient number, since it is larger than the sum of its proper divisors (18023693201).

54071079591 is a wasteful number, since it uses less digits than its factorization.

54071079591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18023693200.

The product of its (nonzero) digits is 396900, while the sum is 48.

The spelling of 54071079591 in words is "fifty-four billion, seventy-one million, seventy-nine thousand, five hundred ninety-one".