86957117453550 has 96 divisors (see below), whose sum is σ = 217154332706400. Its totient is φ = 23027374056960.

The previous prime is 86957117453537. The next prime is 86957117453623. The reversal of 86957117453550 is 5535471175968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39166656 + ... + 41327244.

It is an arithmetic number, because the mean of its divisors is an integer number (2262024299025).

Almost surely, 2^{86957117453550} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86957117453550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108577166353200).

86957117453550 is an abundant number, since it is smaller than the sum of its proper divisors (130197215252850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86957117453550 is a wasteful number, since it uses less digits than its factorization.

86957117453550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162470 (or 2162465 counting only the distinct ones).

The product of its (nonzero) digits is 158760000, while the sum is 66.

The spelling of 86957117453550 in words is "eighty-six trillion, nine hundred fifty-seven billion, one hundred seventeen million, four hundred fifty-three thousand, five hundred fifty".