11890023553 has 8 divisors (see below), whose sum is σ = 11932293672. Its totient is φ = 11847795456.

The previous prime is 11890023529. The next prime is 11890023617. The reversal of 11890023553 is 35532009811.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2896915329 + 8993108224 = 53823^2 + 94832^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11890023553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11890029553) 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, 623151 + ... + 641947.

It is an arithmetic number, because the mean of its divisors is an integer number (1491536709).

Almost surely, 2^11890023553 is an apocalyptic number.

It is an amenable number.

11890023553 is a deficient number, since it is larger than the sum of its proper divisors (42270119).

11890023553 is a wasteful number, since it uses less digits than its factorization.

11890023553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21011.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 11890023553 in words is "eleven billion, eight hundred ninety million, twenty-three thousand, five hundred fifty-three".