123395025806 has 16 divisors (see below), whose sum is σ = 207996967584. Its totient is φ = 54475395744.

The previous prime is 123395025799. The next prime is 123395025823. The reversal of 123395025806 is 608520593321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103172501 + ... + 103173696.

It is an arithmetic number, because the mean of its divisors is an integer number (12999810474).

Almost surely, 2^123395025806 is an apocalyptic number.

123395025806 is a deficient number, since it is larger than the sum of its proper divisors (84601941778).

123395025806 is a wasteful number, since it uses less digits than its factorization.

123395025806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206346235.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 123395025806 in words is "one hundred twenty-three billion, three hundred ninety-five million, twenty-five thousand, eight hundred six".