13649573761 has 16 divisors (see below), whose sum is σ = 15147048960. Its totient is φ = 12247759440.

The previous prime is 13649573759. The next prime is 13649573771. The reversal of 13649573761 is 16737594631.

It is a cyclic number.

It is not a de Polignac number, because 13649573761 - 2¹ = 13649573759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13649573699 and 13649573708.

It is not an unprimeable number, because it can be changed into a prime (13649573741) 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 15 ways as a sum of consecutive naturals, for example, 218851 + ... + 274216.

It is an arithmetic number, because the mean of its divisors is an integer number (946690560).

Almost surely, 2^13649573761 is an apocalyptic number.

It is an amenable number.

13649573761 is a deficient number, since it is larger than the sum of its proper divisors (1497475199).

13649573761 is a wasteful number, since it uses less digits than its factorization.

13649573761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493164.

The product of its digits is 2857680, while the sum is 52.

The spelling of 13649573761 in words is "thirteen billion, six hundred forty-nine million, five hundred seventy-three thousand, seven hundred sixty-one".