20424120862 has 4 divisors (see below), whose sum is σ = 30636181296. Its totient is φ = 10212060430.

The previous prime is 20424120781. The next prime is 20424120869. The reversal of 20424120862 is 26802142402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424120869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106030214 + ... + 5106030217.

It is an arithmetic number, because the mean of its divisors is an integer number (7659045324).

Almost surely, 2^20424120862 is an apocalyptic number.

20424120862 is a deficient number, since it is larger than the sum of its proper divisors (10212060434).

20424120862 is a wasteful number, since it uses less digits than its factorization.

20424120862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212060433.

The product of its (nonzero) digits is 12288, while the sum is 31.

The spelling of 20424120862 in words is "twenty billion, four hundred twenty-four million, one hundred twenty thousand, eight hundred sixty-two".