54537749891 has 8 divisors (see below), whose sum is σ = 59904165120. Its totient is φ = 49420935432.

The previous prime is 54537749869. The next prime is 54537749921. The reversal of 54537749891 is 19894773545.

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-54537749891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54537749291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62399735 + ... + 62400608.

It is an arithmetic number, because the mean of its divisors is an integer number (7488020640).

Almost surely, 2^54537749891 is an apocalyptic number.

54537749891 is a deficient number, since it is larger than the sum of its proper divisors (5366415229).

54537749891 is a wasteful number, since it uses less digits than its factorization.

54537749891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124800385.

The product of its digits is 38102400, while the sum is 62.

The spelling of 54537749891 in words is "fifty-four billion, five hundred thirty-seven million, seven hundred forty-nine thousand, eight hundred ninety-one".