11623641047 has 16 divisors (see below), whose sum is σ = 12509017920. Its totient is φ = 10762027008.

The previous prime is 11623641041. The next prime is 11623641049. The reversal of 11623641047 is 74014632611.

It is a cyclic number.

It is not a de Polignac number, because 11623641047 - 2¹² = 11623636951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11623640998 and 11623641016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11623641041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254279 + ... + 296487.

It is an arithmetic number, because the mean of its divisors is an integer number (781813620).

Almost surely, 2^11623641047 is an apocalyptic number.

11623641047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11623641047 is a deficient number, since it is larger than the sum of its proper divisors (885376873).

11623641047 is a wasteful number, since it uses less digits than its factorization.

11623641047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42490.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 11623641047 in words is "eleven billion, six hundred twenty-three million, six hundred forty-one thousand, forty-seven".