911667138842 has 8 divisors (see below), whose sum is σ = 1411613634432. Its totient is φ = 441129260700.

The previous prime is 911667138841. The next prime is 911667138859. The reversal of 911667138842 is 248831766119.

It is a happy number.

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

It is a super-2 number, since 2×911667138842² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (911667138841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7352154284 + ... + 7352154407.

It is an arithmetic number, because the mean of its divisors is an integer number (176451704304).

Almost surely, 2^911667138842 is an apocalyptic number.

911667138842 is a deficient number, since it is larger than the sum of its proper divisors (499946495590).

911667138842 is a wasteful number, since it uses less digits than its factorization.

911667138842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14704308724.

The product of its digits is 3483648, while the sum is 56.

The spelling of 911667138842 in words is "nine hundred eleven billion, six hundred sixty-seven million, one hundred thirty-eight thousand, eight hundred forty-two".