54183139697 has 8 divisors (see below), whose sum is σ = 55650468456. Its totient is φ = 52715964672.

The previous prime is 54183139669. The next prime is 54183139711. The reversal of 54183139697 is 79693138145.

It can be written as a sum of positive squares in 4 ways, for example, as 7416482161 + 46766657536 = 86119^2 + 216256^2 .

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-54183139697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54183139607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1276073 + ... + 1317849.

It is an arithmetic number, because the mean of its divisors is an integer number (6956308557).

Almost surely, 2^54183139697 is an apocalyptic number.

It is an amenable number.

54183139697 is a deficient number, since it is larger than the sum of its proper divisors (1467328759).

54183139697 is a wasteful number, since it uses less digits than its factorization.

54183139697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76867.

The product of its digits is 4898880, while the sum is 56.

The spelling of 54183139697 in words is "fifty-four billion, one hundred eighty-three million, one hundred thirty-nine thousand, six hundred ninety-seven".