11954733361 has 4 divisors (see below), whose sum is σ = 11962710000. Its totient is φ = 11946756724.

The previous prime is 11954733359. The next prime is 11954733379. The reversal of 11954733361 is 16333745911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11954733361 - 2¹ = 11954733359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11954733311) 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, 3986071 + ... + 3989068.

It is an arithmetic number, because the mean of its divisors is an integer number (2990677500).

Almost surely, 2^11954733361 is an apocalyptic number.

It is an amenable number.

11954733361 is a deficient number, since it is larger than the sum of its proper divisors (7976639).

11954733361 is an equidigital number, since it uses as much as digits as its factorization.

11954733361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976638.

The product of its digits is 204120, while the sum is 43.

The spelling of 11954733361 in words is "eleven billion, nine hundred fifty-four million, seven hundred thirty-three thousand, three hundred sixty-one".