54949244689 has 8 divisors (see below), whose sum is σ = 56850849000. Its totient is φ = 53048093952.

The previous prime is 54949244617. The next prime is 54949244737. The reversal of 54949244689 is 98644294945.

It can be written as a sum of positive squares in 4 ways, for example, as 6281355025 + 48667889664 = 79255^2 + 220608^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54949244689 - 2¹¹ = 54949242641 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 54949244689.

It is not an unprimeable number, because it can be changed into a prime (54949244989) 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, 142947 + ... + 361015.

It is an arithmetic number, because the mean of its divisors is an integer number (7106356125).

Almost surely, 2^54949244689 is an apocalyptic number.

It is an amenable number.

54949244689 is a deficient number, since it is larger than the sum of its proper divisors (1901604311).

54949244689 is a wasteful number, since it uses less digits than its factorization.

54949244689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226787.

The product of its digits is 89579520, while the sum is 64.

The spelling of 54949244689 in words is "fifty-four billion, nine hundred forty-nine million, two hundred forty-four thousand, six hundred eighty-nine".