123607454138 has 32 divisors (see below), whose sum is σ = 224387190144. Its totient is φ = 49853117952.

The previous prime is 123607454137. The next prime is 123607454143. The reversal of 123607454138 is 831454706321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123607454137) 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, 2792870 + ... + 2836782.

It is an arithmetic number, because the mean of its divisors is an integer number (7012099692).

Almost surely, 2^123607454138 is an apocalyptic number.

123607454138 is a deficient number, since it is larger than the sum of its proper divisors (100779736006).

123607454138 is a wasteful number, since it uses less digits than its factorization.

123607454138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55766.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 123607454138 in words is "one hundred twenty-three billion, six hundred seven million, four hundred fifty-four thousand, one hundred thirty-eight".