118909000072 has 8 divisors (see below), whose sum is σ = 222954375150. Its totient is φ = 59454500032.

The previous prime is 118909000057. The next prime is 118909000073. The reversal of 118909000072 is 270000909811.

It can be written as a sum of positive squares in only one way, i.e., 83552214916 + 35356785156 = 289054^2 + 188034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 118908999995 and 118909000040.

It is not an unprimeable number, because it can be changed into a prime (118909000073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7431812497 + ... + 7431812512.

Almost surely, 2^118909000072 is an apocalyptic number.

It is an amenable number.

118909000072 is a deficient number, since it is larger than the sum of its proper divisors (104045375078).

118909000072 is a wasteful number, since it uses less digits than its factorization.

118909000072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14863625015 (or 14863625011 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 37.

Adding to 118909000072 its reverse (270000909811), we get a palindrome (388909909883).

The spelling of 118909000072 in words is "one hundred eighteen billion, nine hundred nine million, seventy-two", and thus it is an aban number.