54635023398649 has 2 divisors, whose sum is σ = 54635023398650. Its totient is φ = 54635023398648.

The previous prime is 54635023398563. The next prime is 54635023398667. The reversal of 54635023398649 is 94689332053645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48451247040249 + 6183776358400 = 6960693^2 + 2486720^2 .

It is a cyclic number.

It is not a de Polignac number, because 54635023398649 - 2⁷ = 54635023398521 is a prime.

It is not a weakly prime, because it can be changed into another prime (54635023398679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27317511699324 + 27317511699325.

It is an arithmetic number, because the mean of its divisors is an integer number (27317511699325).

Almost surely, 2^{54635023398649} is an apocalyptic number.

It is an amenable number.

54635023398649 is a deficient number, since it is larger than the sum of its proper divisors (1).

54635023398649 is an equidigital number, since it uses as much as digits as its factorization.

54635023398649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 503884800, while the sum is 67.

The spelling of 54635023398649 in words is "fifty-four trillion, six hundred thirty-five billion, twenty-three million, three hundred ninety-eight thousand, six hundred forty-nine".