11427620729 has 8 divisors (see below), whose sum is σ = 13067066880. Its totient is φ = 9789906816.

The previous prime is 11427620707. The next prime is 11427620747. The reversal of 11427620729 is 92702672411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11427620729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11427620759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418889 + ... + 445334.

It is an arithmetic number, because the mean of its divisors is an integer number (1633383360).

Almost surely, 2^11427620729 is an apocalyptic number.

It is an amenable number.

11427620729 is a deficient number, since it is larger than the sum of its proper divisors (1639446151).

11427620729 is an equidigital number, since it uses as much as digits as its factorization.

11427620729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866119.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 11427620729 in words is "eleven billion, four hundred twenty-seven million, six hundred twenty thousand, seven hundred twenty-nine".