54696871945 has 4 divisors (see below), whose sum is σ = 65636246340. Its totient is φ = 43757497552.

The previous prime is 54696871921. The next prime is 54696871961. The reversal of 54696871945 is 54917869645.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22503900169 + 32192971776 = 150013^2 + 179424^2 .

It is a cyclic number.

It is not a de Polignac number, because 54696871945 - 2³³ = 46106937353 is a prime.

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, 5469687190 + ... + 5469687199.

It is an arithmetic number, because the mean of its divisors is an integer number (16409061585).

Almost surely, 2^54696871945 is an apocalyptic number.

It is an amenable number.

54696871945 is a deficient number, since it is larger than the sum of its proper divisors (10939374395).

54696871945 is a wasteful number, since it uses less digits than its factorization.

54696871945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10939374394.

The product of its digits is 65318400, while the sum is 64.

The spelling of 54696871945 in words is "fifty-four billion, six hundred ninety-six million, eight hundred seventy-one thousand, nine hundred forty-five".