54811778737 has 2 divisors, whose sum is σ = 54811778738. Its totient is φ = 54811778736.

The previous prime is 54811778731. The next prime is 54811778771. The reversal of 54811778737 is 73787711845.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49522271296 + 5289507441 = 222536^2 + 72729^2 .

It is a cyclic number.

It is not a de Polignac number, because 54811778737 - 2³ = 54811778729 is a prime.

It is not a weakly prime, because it can be changed into another prime (54811778731) 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 as a sum of consecutive naturals, namely, 27405889368 + 27405889369.

It is an arithmetic number, because the mean of its divisors is an integer number (27405889369).

Almost surely, 2^54811778737 is an apocalyptic number.

It is an amenable number.

54811778737 is a deficient number, since it is larger than the sum of its proper divisors (1).

54811778737 is an equidigital number, since it uses as much as digits as its factorization.

54811778737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9219840, while the sum is 58.

The spelling of 54811778737 in words is "fifty-four billion, eight hundred eleven million, seven hundred seventy-eight thousand, seven hundred thirty-seven".