103844078109 has 24 divisors (see below), whose sum is σ = 154796550720. Its totient is φ = 68800498776.

The previous prime is 103844078081. The next prime is 103844078147. The reversal of 103844078109 is 901870448301.

It is a happy number.

103844078109 is a `hidden beast` number, since 1 + 0 + 38 + 440 + 78 + 109 = 666.

It is not a de Polignac number, because 103844078109 - 2³⁵ = 69484339741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103844078309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21636292 + ... + 21641090.

It is an arithmetic number, because the mean of its divisors is an integer number (6449856280).

Almost surely, 2^103844078109 is an apocalyptic number.

It is an amenable number.

103844078109 is a deficient number, since it is larger than the sum of its proper divisors (50952472611).

103844078109 is an frugal number, since it uses more digits than its factorization.

103844078109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9774 (or 4969 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 103844078109 in words is "one hundred three billion, eight hundred forty-four million, seventy-eight thousand, one hundred nine".