11253961509 has 8 divisors (see below), whose sum is σ = 17148893760. Its totient is φ = 6430835136.

The previous prime is 11253961501. The next prime is 11253961513. The reversal of 11253961509 is 90516935211.

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

It is not a de Polignac number, because 11253961509 - 2³ = 11253961501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11253961501) 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, 267951444 + ... + 267951485.

It is an arithmetic number, because the mean of its divisors is an integer number (2143611720).

Almost surely, 2^11253961509 is an apocalyptic number.

It is an amenable number.

11253961509 is a deficient number, since it is larger than the sum of its proper divisors (5894932251).

11253961509 is an equidigital number, since it uses as much as digits as its factorization.

11253961509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535902939.

The product of its (nonzero) digits is 72900, while the sum is 42.

The spelling of 11253961509 in words is "eleven billion, two hundred fifty-three million, nine hundred sixty-one thousand, five hundred nine".