53578638913 has 2 divisors, whose sum is σ = 53578638914. Its totient is φ = 53578638912.

The previous prime is 53578638889. The next prime is 53578638947. The reversal of 53578638913 is 31983687535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43128074929 + 10450563984 = 207673^2 + 102228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53578638913 is a prime.

It is not a weakly prime, because it can be changed into another prime (53578638613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26789319456 + 26789319457.

It is an arithmetic number, because the mean of its divisors is an integer number (26789319457).

Almost surely, 2^53578638913 is an apocalyptic number.

It is an amenable number.

53578638913 is a deficient number, since it is larger than the sum of its proper divisors (1).

53578638913 is an equidigital number, since it uses as much as digits as its factorization.

53578638913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 58.

The spelling of 53578638913 in words is "fifty-three billion, five hundred seventy-eight million, six hundred thirty-eight thousand, nine hundred thirteen".