911548047138 has 8 divisors (see below), whose sum is σ = 1823096094288. Its totient is φ = 303849349044.

The previous prime is 911548047131. The next prime is 911548047161. The reversal of 911548047138 is 831740845119.

It is a sphenic number, since it is the product of 3 distinct primes.

911548047138 is an admirable number.

It is a super-2 number, since 2×911548047138² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (911548047131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75962337256 + ... + 75962337267.

It is an arithmetic number, because the mean of its divisors is an integer number (227887011786).

Almost surely, 2^911548047138 is an apocalyptic number.

911548047138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

911548047138 is a wasteful number, since it uses less digits than its factorization.

911548047138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151924674528.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 911548047138 in words is "nine hundred eleven billion, five hundred forty-eight million, forty-seven thousand, one hundred thirty-eight".