20950424774 has 8 divisors (see below), whose sum is σ = 32439367488. Its totient is φ = 10137302280.

The previous prime is 20950424773. The next prime is 20950424777. The reversal of 20950424774 is 47742405902.

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

It is a super-2 number, since 2×20950424774² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20950424773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168954977 + ... + 168955100.

It is an arithmetic number, because the mean of its divisors is an integer number (4054920936).

Almost surely, 2^20950424774 is an apocalyptic number.

20950424774 is a deficient number, since it is larger than the sum of its proper divisors (11488942714).

20950424774 is a wasteful number, since it uses less digits than its factorization.

20950424774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337910110.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 20950424774 in words is "twenty billion, nine hundred fifty million, four hundred twenty-four thousand, seven hundred seventy-four".