11672647653 has 4 divisors (see below), whose sum is σ = 15563530208. Its totient is φ = 7781765100.

The previous prime is 11672647543. The next prime is 11672647673. The reversal of 11672647653 is 35674627611.

It is a happy number.

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 de Polignac number, because none of the positive numbers 2^k-11672647653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11672647673) 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, 1945441273 + ... + 1945441278.

It is an arithmetic number, because the mean of its divisors is an integer number (3890882552).

Almost surely, 2^11672647653 is an apocalyptic number.

It is an amenable number.

11672647653 is a deficient number, since it is larger than the sum of its proper divisors (3890882555).

11672647653 is an equidigital number, since it uses as much as digits as its factorization.

11672647653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890882554.

The product of its digits is 1270080, while the sum is 48.

The spelling of 11672647653 in words is "eleven billion, six hundred seventy-two million, six hundred forty-seven thousand, six hundred fifty-three".