11728091708 has 6 divisors (see below), whose sum is σ = 20524160496. Its totient is φ = 5864045852.

The previous prime is 11728091693. The next prime is 11728091731. The reversal of 11728091708 is 80719082711.

It is a super-2 number, since 2×11728091708² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1466011460 + ... + 1466011467.

It is an arithmetic number, because the mean of its divisors is an integer number (3420693416).

Almost surely, 2^11728091708 is an apocalyptic number.

It is an amenable number.

11728091708 is a deficient number, since it is larger than the sum of its proper divisors (8796068788).

11728091708 is a wasteful number, since it uses less digits than its factorization.

11728091708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932022931 (or 2932022929 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 44.

The spelling of 11728091708 in words is "eleven billion, seven hundred twenty-eight million, ninety-one thousand, seven hundred eight".