102089850405 has 16 divisors (see below), whose sum is σ = 166021528704. Its totient is φ = 53555330880.

The previous prime is 102089850377. The next prime is 102089850409. The reversal of 102089850405 is 504058980201.

It is a happy number.

It is not a de Polignac number, because 102089850405 - 2⁶ = 102089850341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102089850409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55785889 + ... + 55787718.

It is an arithmetic number, because the mean of its divisors is an integer number (10376345544).

Almost surely, 2^102089850405 is an apocalyptic number.

102089850405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102089850405 is a deficient number, since it is larger than the sum of its proper divisors (63931678299).

102089850405 is a wasteful number, since it uses less digits than its factorization.

102089850405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111573676.

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 102089850405 in words is "one hundred two billion, eighty-nine million, eight hundred fifty thousand, four hundred five".