54321372158 has 4 divisors (see below), whose sum is σ = 81482058240. Its totient is φ = 27160686078.

The previous prime is 54321372151. The next prime is 54321372167. The reversal of 54321372158 is 85127312345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85127312345 = 5 ⋅17025462469.

It is a super-2 number, since 2×54321372158² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54321372151) 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 as a sum of consecutive naturals, namely, 13580343038 + ... + 13580343041.

It is an arithmetic number, because the mean of its divisors is an integer number (20370514560).

Almost surely, 2^54321372158 is an apocalyptic number.

54321372158 is a deficient number, since it is larger than the sum of its proper divisors (27160686082).

54321372158 is a wasteful number, since it uses less digits than its factorization.

54321372158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27160686081.

The product of its digits is 201600, while the sum is 41.

The spelling of 54321372158 in words is "fifty-four billion, three hundred twenty-one million, three hundred seventy-two thousand, one hundred fifty-eight".