13747815480961 has 4 divisors (see below), whose sum is σ = 13755258804672. Its totient is φ = 13740372157252.

The previous prime is 13747815480899. The next prime is 13747815480983. The reversal of 13747815480961 is 16908451874731.

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 13747815480961 - 2²¹ = 13747813383809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13747815480893 and 13747815480902.

It is not an unprimeable number, because it can be changed into a prime (13747815480991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3721659085 + ... + 3721662778.

It is an arithmetic number, because the mean of its divisors is an integer number (3438814701168).

Almost surely, 2^{13747815480961} is an apocalyptic number.

It is an amenable number.

13747815480961 is a deficient number, since it is larger than the sum of its proper divisors (7443323711).

13747815480961 is an equidigital number, since it uses as much as digits as its factorization.

13747815480961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7443323710.

The product of its (nonzero) digits is 40642560, while the sum is 64.

The spelling of 13747815480961 in words is "thirteen trillion, seven hundred forty-seven billion, eight hundred fifteen million, four hundred eighty thousand, nine hundred sixty-one".