102891310518 has 16 divisors (see below), whose sum is σ = 205804371456. Its totient is φ = 34293478440.

The previous prime is 102891310513. The next prime is 102891310579. The reversal of 102891310518 is 815013198201.

It is a super-2 number, since 2×102891310518² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102891310513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844446 + ... + 958577.

It is an arithmetic number, because the mean of its divisors is an integer number (12862773216).

Almost surely, 2^102891310518 is an apocalyptic number.

102891310518 is an abundant number, since it is smaller than the sum of its proper divisors (102913060938).

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

102891310518 is a wasteful number, since it uses less digits than its factorization.

102891310518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812539.

The product of its (nonzero) digits is 17280, while the sum is 39.

The spelling of 102891310518 in words is "one hundred two billion, eight hundred ninety-one million, three hundred ten thousand, five hundred eighteen".