10891742603 has 4 divisors (see below), whose sum is σ = 12447705840. Its totient is φ = 9335779368.

The previous prime is 10891742591. The next prime is 10891742629. The reversal of 10891742603 is 30624719801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10891742603 - 2⁶ = 10891742539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10891742683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777981608 + ... + 777981621.

It is an arithmetic number, because the mean of its divisors is an integer number (3111926460).

Almost surely, 2^10891742603 is an apocalyptic number.

10891742603 is a deficient number, since it is larger than the sum of its proper divisors (1555963237).

10891742603 is an equidigital number, since it uses as much as digits as its factorization.

10891742603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555963236.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 10891742603 in words is "ten billion, eight hundred ninety-one million, seven hundred forty-two thousand, six hundred three".