53185196865 has 8 divisors (see below), whose sum is σ = 85096315008. Its totient is φ = 28365438320.

The previous prime is 53185196863. The next prime is 53185196879. The reversal of 53185196865 is 56869158135.

It is a happy number.

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

It is not a de Polignac number, because 53185196865 - 2¹ = 53185196863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53185196863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1772839881 + ... + 1772839910.

It is an arithmetic number, because the mean of its divisors is an integer number (10637039376).

Almost surely, 2^53185196865 is an apocalyptic number.

It is an amenable number.

53185196865 is a deficient number, since it is larger than the sum of its proper divisors (31911118143).

53185196865 is a wasteful number, since it uses less digits than its factorization.

53185196865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545679799.

The product of its digits is 7776000, while the sum is 57.

The spelling of 53185196865 in words is "fifty-three billion, one hundred eighty-five million, one hundred ninety-six thousand, eight hundred sixty-five".