10891742468 has 6 divisors (see below), whose sum is σ = 19060549326. Its totient is φ = 5445871232.

The previous prime is 10891742467. The next prime is 10891742473. The reversal of 10891742468 is 86424719801.

It can be written as a sum of positive squares in only one way, i.e., 10288450624 + 603291844 = 101432^2 + 24562^2 .

It is not an unprimeable number, because it can be changed into a prime (10891742467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361467805 + ... + 1361467812.

It is an arithmetic number, because the mean of its divisors is an integer number (3176758221).

Almost surely, 2^10891742468 is an apocalyptic number.

It is an amenable number.

10891742468 is a deficient number, since it is larger than the sum of its proper divisors (8168806858).

10891742468 is a wasteful number, since it uses less digits than its factorization.

10891742468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722935621 (or 2722935619 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 10891742468 in words is "ten billion, eight hundred ninety-one million, seven hundred forty-two thousand, four hundred sixty-eight".