54193436199977 has 2 divisors, whose sum is σ = 54193436199978. Its totient is φ = 54193436199976.

The previous prime is 54193436199971. The next prime is 54193436199979. The reversal of 54193436199977 is 77999163439145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45322664948521 + 8870771251456 = 6732211^2 + 2978384^2 .

It is a cyclic number.

It is not a de Polignac number, because 54193436199977 - 2²⁴ = 54193419422761 is a prime.

Together with 54193436199979, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 54193436199898 and 54193436199907.

It is not a weakly prime, because it can be changed into another prime (54193436199971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27096718099988 + 27096718099989.

It is an arithmetic number, because the mean of its divisors is an integer number (27096718099989).

Almost surely, 2^{54193436199977} is an apocalyptic number.

It is an amenable number.

54193436199977 is a deficient number, since it is larger than the sum of its proper divisors (1).

54193436199977 is an equidigital number, since it uses as much as digits as its factorization.

54193436199977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1388832480, while the sum is 77.

The spelling of 54193436199977 in words is "fifty-four trillion, one hundred ninety-three billion, four hundred thirty-six million, one hundred ninety-nine thousand, nine hundred seventy-seven".