102638433843 has 12 divisors (see below), whose sum is σ = 161733289848. Its totient is φ = 62205111360.

The previous prime is 102638433797. The next prime is 102638433853. The reversal of 102638433843 is 348334836201.

102638433843 is a `hidden beast` number, since 1 + 0 + 2 + 638 + 4 + 3 + 3 + 8 + 4 + 3 = 666.

It is not a de Polignac number, because 102638433843 - 2⁸ = 102638433587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102638433853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 518375830 + ... + 518376027.

It is an arithmetic number, because the mean of its divisors is an integer number (13477774154).

Almost surely, 2^102638433843 is an apocalyptic number.

102638433843 is a deficient number, since it is larger than the sum of its proper divisors (59094856005).

102638433843 is a wasteful number, since it uses less digits than its factorization.

102638433843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036751874 (or 1036751871 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 102638433843 in words is "one hundred two billion, six hundred thirty-eight million, four hundred thirty-three thousand, eight hundred forty-three".