911139804142 has 16 divisors (see below), whose sum is σ = 1368934233120. Its totient is φ = 454828596768.

The previous prime is 911139804137. The next prime is 911139804143. The reversal of 911139804142 is 241408931119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (911139804143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9646288 + ... + 9740284.

It is an arithmetic number, because the mean of its divisors is an integer number (85558389570).

Almost surely, 2^911139804142 is an apocalyptic number.

911139804142 is a deficient number, since it is larger than the sum of its proper divisors (457794428978).

911139804142 is a wasteful number, since it uses less digits than its factorization.

911139804142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101835.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 911139804142 in words is "nine hundred eleven billion, one hundred thirty-nine million, eight hundred four thousand, one hundred forty-two".