20976468915 has 8 divisors (see below), whose sum is σ = 33562350288. Its totient is φ = 11187450080.

The previous prime is 20976468907. The next prime is 20976468971. The reversal of 20976468915 is 51986467902.

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

It is not a de Polignac number, because 20976468915 - 2³ = 20976468907 is a prime.

It is a super-2 number, since 2×20976468915² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699215616 + ... + 699215645.

It is an arithmetic number, because the mean of its divisors is an integer number (4195293786).

Almost surely, 2^20976468915 is an apocalyptic number.

20976468915 is a deficient number, since it is larger than the sum of its proper divisors (12585881373).

20976468915 is a wasteful number, since it uses less digits than its factorization.

20976468915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398431269.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 20976468915 in words is "twenty billion, nine hundred seventy-six million, four hundred sixty-eight thousand, nine hundred fifteen".