10891742448 has 40 divisors (see below), whose sum is σ = 28791355648. Its totient is φ = 3546148032.

The previous prime is 10891742443. The next prime is 10891742467. The reversal of 10891742448 is 84424719801.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 10891742397 and 10891742406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10891742441) 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, 2636440 + ... + 2640567.

Almost surely, 2^10891742448 is an apocalyptic number.

It is an amenable number.

10891742448 is an abundant number, since it is smaller than the sum of its proper divisors (17899613200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10891742448 is a wasteful number, since it uses less digits than its factorization.

10891742448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277061 (or 5277055 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 10891742448 in words is "ten billion, eight hundred ninety-one million, seven hundred forty-two thousand, four hundred forty-eight".