53219865964 has 12 divisors (see below), whose sum is σ = 94094918344. Its totient is φ = 26335603584.

The previous prime is 53219865961. The next prime is 53219865971. The reversal of 53219865964 is 46956891235.

It is a super-2 number, since 2×53219865964² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53219865899 and 53219865908.

It is not an unprimeable number, because it can be changed into a prime (53219865961) 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 in 3 ways as a sum of consecutive naturals, for example, 68581914 + ... + 68582689.

Almost surely, 2^53219865964 is an apocalyptic number.

It is an amenable number.

53219865964 is a deficient number, since it is larger than the sum of its proper divisors (40875052380).

53219865964 is a wasteful number, since it uses less digits than its factorization.

53219865964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137164704 (or 137164702 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 58.

The spelling of 53219865964 in words is "fifty-three billion, two hundred nineteen million, eight hundred sixty-five thousand, nine hundred sixty-four".