11775143461 has 8 divisors (see below), whose sum is σ = 12232237248. Its totient is φ = 11326140000.

The previous prime is 11775143459. The next prime is 11775143473. The reversal of 11775143461 is 16434157711.

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

It is a cyclic number.

It is not a de Polignac number, because 11775143461 - 2¹ = 11775143459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11775143431) 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, 2019615 + ... + 2025436.

It is an arithmetic number, because the mean of its divisors is an integer number (1529029656).

Almost surely, 2^11775143461 is an apocalyptic number.

It is an amenable number.

11775143461 is a deficient number, since it is larger than the sum of its proper divisors (457093787).

11775143461 is an equidigital number, since it uses as much as digits as its factorization.

11775143461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045163.

The product of its digits is 70560, while the sum is 40.

It can be divided in two parts, 11775 and 143461, that added together give a square (155236 = 394²).

The spelling of 11775143461 in words is "eleven billion, seven hundred seventy-five million, one hundred forty-three thousand, four hundred sixty-one".