118468644278538 has 32 divisors (see below), whose sum is σ = 247300674356736. Its totient is φ = 37763174967408.

The previous prime is 118468644278531. The next prime is 118468644278563. The reversal of 118468644278538 is 835872446864811.

It is a self number, because there is not a number n which added to its sum of digits gives 118468644278538.

It is not an unprimeable number, because it can be changed into a prime (118468644278531) 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, 106675720 + ... + 107780547.

It is an arithmetic number, because the mean of its divisors is an integer number (7728146073648).

Almost surely, 2^{118468644278538} is an apocalyptic number.

118468644278538 is an abundant number, since it is smaller than the sum of its proper divisors (128832030078198).

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

118468644278538 is a wasteful number, since it uses less digits than its factorization.

118468644278538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214460298.

The product of its digits is 1981808640, while the sum is 75.

The spelling of 118468644278538 in words is "one hundred eighteen trillion, four hundred sixty-eight billion, six hundred forty-four million, two hundred seventy-eight thousand, five hundred thirty-eight".