86665787528650 has 48 divisors (see below), whose sum is σ = 185108170131360. Its totient is φ = 29856156465600.

The previous prime is 86665787528629. The next prime is 86665787528653. The reversal of 86665787528650 is 5682578756668.

It is a super-2 number, since 2×86665787528650² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86665787528653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4146677949 + ... + 4146698848.

It is an arithmetic number, because the mean of its divisors is an integer number (3856420211070).

Almost surely, 2^{86665787528650} is an apocalyptic number.

86665787528650 is an abundant number, since it is smaller than the sum of its proper divisors (98442382602710).

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

86665787528650 is a wasteful number, since it uses less digits than its factorization.

86665787528650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8293376839 (or 8293376834 counting only the distinct ones).

The product of its (nonzero) digits is 8128512000, while the sum is 79.

The spelling of 86665787528650 in words is "eighty-six trillion, six hundred sixty-five billion, seven hundred eighty-seven million, five hundred twenty-eight thousand, six hundred fifty".