123638607006 has 64 divisors (see below), whose sum is σ = 254290544640. Its totient is φ = 40054099680.

The previous prime is 123638606999. The next prime is 123638607011. The reversal of 123638607006 is 600706836321.

It is a super-2 number, since 2×123638607006² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52145001 + ... + 52147371.

It is an arithmetic number, because the mean of its divisors is an integer number (3973289760).

Almost surely, 2^123638607006 is an apocalyptic number.

123638607006 is an abundant number, since it is smaller than the sum of its proper divisors (130651937634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123638607006 is a wasteful number, since it uses less digits than its factorization.

123638607006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 123638607006 in words is "one hundred twenty-three billion, six hundred thirty-eight million, six hundred seven thousand, six".