54618239699 has 2 divisors, whose sum is σ = 54618239700. Its totient is φ = 54618239698.

The previous prime is 54618239653. The next prime is 54618239737. The reversal of 54618239699 is 99693281645.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54618239699 is a prime.

It is a super-2 number, since 2×54618239699² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54618232699) 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, 27309119849 + 27309119850.

It is an arithmetic number, because the mean of its divisors is an integer number (27309119850).

Almost surely, 2^54618239699 is an apocalyptic number.

54618239699 is a deficient number, since it is larger than the sum of its proper divisors (1).

54618239699 is an equidigital number, since it uses as much as digits as its factorization.

54618239699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25194240, while the sum is 62.

The spelling of 54618239699 in words is "fifty-four billion, six hundred eighteen million, two hundred thirty-nine thousand, six hundred ninety-nine".