11463778810641 has 4 divisors (see below), whose sum is σ = 15285038414192. Its totient is φ = 7642519207092.

The previous prime is 11463778810609. The next prime is 11463778810651. The reversal of 11463778810641 is 14601887736411.

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 not a de Polignac number, because 11463778810641 - 2⁵ = 11463778810609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11463778810651) 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, 1910629801771 + ... + 1910629801776.

It is an arithmetic number, because the mean of its divisors is an integer number (3821259603548).

Almost surely, 2^{11463778810641} is an apocalyptic number.

It is an amenable number.

11463778810641 is a deficient number, since it is larger than the sum of its proper divisors (3821259603551).

11463778810641 is an equidigital number, since it uses as much as digits as its factorization.

11463778810641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821259603550.

The product of its (nonzero) digits is 5419008, while the sum is 57.

The spelling of 11463778810641 in words is "eleven trillion, four hundred sixty-three billion, seven hundred seventy-eight million, eight hundred ten thousand, six hundred forty-one".