20935625719 has 4 divisors (see below), whose sum is σ = 21278832760. Its totient is φ = 20592418680.

The previous prime is 20935625713. The next prime is 20935625729. The reversal of 20935625719 is 91752653902.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20935625719 - 2⁵ = 20935625687 is a prime.

It is a super-2 number, since 2×20935625719² (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 (20935625713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171603429 + ... + 171603550.

It is an arithmetic number, because the mean of its divisors is an integer number (5319708190).

Almost surely, 2^20935625719 is an apocalyptic number.

20935625719 is a deficient number, since it is larger than the sum of its proper divisors (343207041).

20935625719 is an equidigital number, since it uses as much as digits as its factorization.

20935625719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343207040.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The spelling of 20935625719 in words is "twenty billion, nine hundred thirty-five million, six hundred twenty-five thousand, seven hundred nineteen".