54815337389 has 4 divisors (see below), whose sum is σ = 54815825856. Its totient is φ = 54814848924.

The previous prime is 54815337373. The next prime is 54815337391. The reversal of 54815337389 is 98373351845.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 54815337389 - 2⁴ = 54815337373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54815337349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17822 + ... + 331584.

It is an arithmetic number, because the mean of its divisors is an integer number (13703956464).

Almost surely, 2^54815337389 is an apocalyptic number.

It is an amenable number.

54815337389 is a deficient number, since it is larger than the sum of its proper divisors (488467).

54815337389 is a wasteful number, since it uses less digits than its factorization.

54815337389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488466.

The product of its digits is 10886400, while the sum is 56.

The spelling of 54815337389 in words is "fifty-four billion, eight hundred fifteen million, three hundred thirty-seven thousand, three hundred eighty-nine".