86698852899840 has 1056 divisors, whose sum is σ = 331441539496704. Its totient is φ = 21655470735360.

The previous prime is 86698852899839. The next prime is 86698852899851. The reversal of 86698852899840 is 4899825889668.

It is a happy number.

86698852899840 is a `hidden beast` number, since 86 + 6 + 98 + 85 + 289 + 98 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (90).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4462792207 + ... + 4462811633.

Almost surely, 2^{86698852899840} is an apocalyptic number.

86698852899840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86698852899840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165720769748352).

86698852899840 is an abundant number, since it is smaller than the sum of its proper divisors (244742686596864).

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

86698852899840 is a wasteful number, since it uses less digits than its factorization.

86698852899840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19695 (or 19665 counting only the distinct ones).

The product of its (nonzero) digits is 34398535680, while the sum is 90.

The spelling of 86698852899840 in words is "eighty-six trillion, six hundred ninety-eight billion, eight hundred fifty-two million, eight hundred ninety-nine thousand, eight hundred forty".