900911729911 has 4 divisors (see below), whose sum is σ = 900916145712. Its totient is φ = 900907314112.

The previous prime is 900911729831. The next prime is 900911729929. The reversal of 900911729911 is 119927119009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119927119009 = 1619 ⋅74074811.

It is a cyclic number.

It is not a de Polignac number, because 900911729911 - 2²⁵ = 900878175479 is a prime.

It is a super-2 number, since 2×900911729911² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900911729611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886251 + ... + 2315116.

It is an arithmetic number, because the mean of its divisors is an integer number (225229036428).

Almost surely, 2^900911729911 is an apocalyptic number.

900911729911 is a deficient number, since it is larger than the sum of its proper divisors (4415801).

900911729911 is a wasteful number, since it uses less digits than its factorization.

900911729911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415800.

The product of its (nonzero) digits is 91854, while the sum is 49.

The spelling of 900911729911 in words is "nine hundred billion, nine hundred eleven million, seven hundred twenty-nine thousand, nine hundred eleven".