20242464677 has 4 divisors (see below), whose sum is σ = 20242805376. Its totient is φ = 20242123980.

The previous prime is 20242464673. The next prime is 20242464679. The reversal of 20242464677 is 77646424202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20242464677 - 2² = 20242464673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242464673) 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, 55349 + ... + 208682.

It is an arithmetic number, because the mean of its divisors is an integer number (5060701344).

Almost surely, 2^20242464677 is an apocalyptic number.

It is an amenable number.

20242464677 is a deficient number, since it is larger than the sum of its proper divisors (340699).

20242464677 is an equidigital number, since it uses as much as digits as its factorization.

20242464677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340698.

The product of its (nonzero) digits is 903168, while the sum is 44.

Adding to 20242464677 its reverse (77646424202), we get a palindrome (97888888879).

The spelling of 20242464677 in words is "twenty billion, two hundred forty-two million, four hundred sixty-four thousand, six hundred seventy-seven".