20696376919 has 2 divisors, whose sum is σ = 20696376920. Its totient is φ = 20696376918.

The previous prime is 20696376907. The next prime is 20696376973. The reversal of 20696376919 is 91967369602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20696376919 - 2¹⁹ = 20695852631 is a prime.

It is a super-2 number, since 2×20696376919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20696376979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10348188459 + 10348188460.

It is an arithmetic number, because the mean of its divisors is an integer number (10348188460).

Almost surely, 2^20696376919 is an apocalyptic number.

20696376919 is a deficient number, since it is larger than the sum of its proper divisors (1).

20696376919 is an equidigital number, since it uses as much as digits as its factorization.

20696376919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6613488, while the sum is 58.

The spelling of 20696376919 in words is "twenty billion, six hundred ninety-six million, three hundred seventy-six thousand, nine hundred nineteen".