53219865907 has 8 divisors (see below), whose sum is σ = 58098821984. Its totient is φ = 48453069888.

The previous prime is 53219865863. The next prime is 53219865911. The reversal of 53219865907 is 70956891235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53219865907 - 2⁷ = 53219865779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53219865947) 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 7 ways as a sum of consecutive naturals, for example, 28039023 + ... + 28040920.

It is an arithmetic number, because the mean of its divisors is an integer number (7262352748).

Almost surely, 2^53219865907 is an apocalyptic number.

53219865907 is a deficient number, since it is larger than the sum of its proper divisors (4878956077).

53219865907 is a wasteful number, since it uses less digits than its factorization.

53219865907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56080029.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 53219865907 in words is "fifty-three billion, two hundred nineteen million, eight hundred sixty-five thousand, nine hundred seven".