53186118321 has 16 divisors (see below), whose sum is σ = 84569232384. Its totient is φ = 29070673104.

The previous prime is 53186118313. The next prime is 53186118329. The reversal of 53186118321 is 12381168135.

It is an interprime number because it is at equal distance from previous prime (53186118313) and next prime (53186118329).

It is not a de Polignac number, because 53186118321 - 2³ = 53186118313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53186118321.

It is not an unprimeable number, because it can be changed into a prime (53186118329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55057611 + ... + 55058576.

It is an arithmetic number, because the mean of its divisors is an integer number (5285577024).

Almost surely, 2^53186118321 is an apocalyptic number.

It is an amenable number.

53186118321 is a deficient number, since it is larger than the sum of its proper divisors (31383114063).

53186118321 is a wasteful number, since it uses less digits than its factorization.

53186118321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110116220.

The product of its digits is 34560, while the sum is 39.

The spelling of 53186118321 in words is "fifty-three billion, one hundred eighty-six million, one hundred eighteen thousand, three hundred twenty-one".