20695463719 has 16 divisors (see below), whose sum is σ = 24026296320. Its totient is φ = 17459236800.

The previous prime is 20695463713. The next prime is 20695463731. The reversal of 20695463719 is 91736459602.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20695463719 - 2¹¹ = 20695461671 is a prime.

It is a super-2 number, since 2×20695463719² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20695463713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202494 + ... + 287044.

It is an arithmetic number, because the mean of its divisors is an integer number (1501643520).

Almost surely, 2^20695463719 is an apocalyptic number.

20695463719 is a deficient number, since it is larger than the sum of its proper divisors (3330832601).

20695463719 is an equidigital number, since it uses as much as digits as its factorization.

20695463719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85110.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 20695463719 in words is "twenty billion, six hundred ninety-five million, four hundred sixty-three thousand, seven hundred nineteen".