86218537957 has 8 divisors (see below), whose sum is σ = 89200130400. Its totient is φ = 83237514864.

The previous prime is 86218537921. The next prime is 86218537987. The reversal of 86218537957 is 75973581268.

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 86218537957 - 2¹⁵ = 86218505189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86218537895 and 86218537904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86218537987) 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, 178018 + ... + 451804.

It is an arithmetic number, because the mean of its divisors is an integer number (11150016300).

Almost surely, 2^86218537957 is an apocalyptic number.

It is an amenable number.

86218537957 is a deficient number, since it is larger than the sum of its proper divisors (2981592443).

86218537957 is a wasteful number, since it uses less digits than its factorization.

86218537957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284675.

The product of its digits is 25401600, while the sum is 61.

The spelling of 86218537957 in words is "eighty-six billion, two hundred eighteen million, five hundred thirty-seven thousand, nine hundred fifty-seven".