102405873691 has 8 divisors (see below), whose sum is σ = 118286998704. Its totient is φ = 87619998720.

The previous prime is 102405873677. The next prime is 102405873697. The reversal of 102405873691 is 196378504201.

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 102405873691 - 2⁵ = 102405873659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102405873697) 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, 273812310 + ... + 273812683.

It is an arithmetic number, because the mean of its divisors is an integer number (14785874838).

It is a 1-persistent number, because it is pandigital, but 2⋅102405873691 = 204811747382 is not.

Almost surely, 2^102405873691 is an apocalyptic number.

102405873691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102405873691 is a deficient number, since it is larger than the sum of its proper divisors (15881125013).

102405873691 is a wasteful number, since it uses less digits than its factorization.

102405873691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547625021.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 102405873691 in words is "one hundred two billion, four hundred five million, eight hundred seventy-three thousand, six hundred ninety-one".