11678724651 has 64 divisors (see below), whose sum is σ = 18822896640. Its totient is φ = 6353571840.

The previous prime is 11678724619. The next prime is 11678724653. The reversal of 11678724651 is 15642787611.

It is not a de Polignac number, because 11678724651 - 2⁵ = 11678724619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11678724651.

It is not an unprimeable number, because it can be changed into a prime (11678724653) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5276221 + ... + 5278433.

It is an arithmetic number, because the mean of its divisors is an integer number (294107760).

Almost surely, 2^11678724651 is an apocalyptic number.

11678724651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11678724651 is a deficient number, since it is larger than the sum of its proper divisors (7144171989).

11678724651 is a wasteful number, since it uses less digits than its factorization.

11678724651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676.

The product of its digits is 564480, while the sum is 48.

The spelling of 11678724651 in words is "eleven billion, six hundred seventy-eight million, seven hundred twenty-four thousand, six hundred fifty-one".