10891742473 has 2 divisors, whose sum is σ = 10891742474. Its totient is φ = 10891742472.

The previous prime is 10891742467. The next prime is 10891742489. The reversal of 10891742473 is 37424719801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9244437904 + 1647304569 = 96148^2 + 40587^2 .

It is a cyclic number.

It is not a de Polignac number, because 10891742473 - 2⁵ = 10891742441 is a prime.

It is not a weakly prime, because it can be changed into another prime (10891742443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5445871236 + 5445871237.

It is an arithmetic number, because the mean of its divisors is an integer number (5445871237).

Almost surely, 2^10891742473 is an apocalyptic number.

It is an amenable number.

10891742473 is a deficient number, since it is larger than the sum of its proper divisors (1).

10891742473 is an equidigital number, since it uses as much as digits as its factorization.

10891742473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 10891742473 in words is "ten billion, eight hundred ninety-one million, seven hundred forty-two thousand, four hundred seventy-three".