20926682619 has 8 divisors (see below), whose sum is σ = 27913600320. Its totient is φ = 13945443336.

The previous prime is 20926682617. The next prime is 20926682653. The reversal of 20926682619 is 91628662902.

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

It is not a de Polignac number, because 20926682619 - 2¹ = 20926682617 is a prime.

It is a super-2 number, since 2×20926682619² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20926682617) 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, 1410997 + ... + 1425750.

It is an arithmetic number, because the mean of its divisors is an integer number (3489200040).

Almost surely, 2^20926682619 is an apocalyptic number.

20926682619 is a deficient number, since it is larger than the sum of its proper divisors (6986917701).

20926682619 is a wasteful number, since it uses less digits than its factorization.

20926682619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839209.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 20926682619 in words is "twenty billion, nine hundred twenty-six million, six hundred eighty-two thousand, six hundred nineteen".