13492747647 has 24 divisors (see below), whose sum is σ = 20992400000. Its totient is φ = 8323550928.

The previous prime is 13492747637. The next prime is 13492747651. The reversal of 13492747647 is 74674729431.

It is a happy number.

13492747647 is a `hidden beast` number, since 13 + 492 + 74 + 76 + 4 + 7 = 666.

It is not a de Polignac number, because 13492747647 - 2¹⁹ = 13492223359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13492747593 and 13492747602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13492747637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 910147 + ... + 924852.

Almost surely, 2^13492747647 is an apocalyptic number.

13492747647 is a deficient number, since it is larger than the sum of its proper divisors (7499652353).

13492747647 is a wasteful number, since it uses less digits than its factorization.

13492747647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835067 (or 1835064 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The spelling of 13492747647 in words is "thirteen billion, four hundred ninety-two million, seven hundred forty-seven thousand, six hundred forty-seven".