20831950695 has 16 divisors (see below), whose sum is σ = 33334375392. Its totient is φ = 11109288960.

The previous prime is 20831950687. The next prime is 20831950709. The reversal of 20831950695 is 59605913802.

It is a happy number.

It is not a de Polignac number, because 20831950695 - 2³ = 20831950687 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105199 + ... + 229631.

It is an arithmetic number, because the mean of its divisors is an integer number (2083398462).

Almost surely, 2^20831950695 is an apocalyptic number.

20831950695 is a deficient number, since it is larger than the sum of its proper divisors (12502424697).

20831950695 is a wasteful number, since it uses less digits than its factorization.

20831950695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135602.

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 20831950695 in words is "twenty billion, eight hundred thirty-one million, nine hundred fifty thousand, six hundred ninety-five".