53687038853885 has 8 divisors (see below), whose sum is σ = 66165647885016. Its totient is φ = 41788830242880.

The previous prime is 53687038853843. The next prime is 53687038853947. The reversal of 53687038853885 is 58835883078635.

It can be written as a sum of positive squares in 4 ways, for example, as 2608544779801 + 51078494074084 = 1615099^2 + 7146922^2 .

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

It is not a de Polignac number, because 53687038853885 - 2⁶ = 53687038853821 is a prime.

It is a super-2 number, since 2×53687038853885² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145100104826 + ... + 145100105195.

It is an arithmetic number, because the mean of its divisors is an integer number (8270705985627).

Almost surely, 2^{53687038853885} is an apocalyptic number.

It is an amenable number.

53687038853885 is a deficient number, since it is larger than the sum of its proper divisors (12478609031131).

53687038853885 is a wasteful number, since it uses less digits than its factorization.

53687038853885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290200210063.

The product of its (nonzero) digits is 4644864000, while the sum is 77.

The spelling of 53687038853885 in words is "fifty-three trillion, six hundred eighty-seven billion, thirty-eight million, eight hundred fifty-three thousand, eight hundred eighty-five".