20420626364 has 48 divisors (see below), whose sum is σ = 37117301760. Its totient is φ = 9824518080.

The previous prime is 20420626363. The next prime is 20420626397. The reversal of 20420626364 is 46362602402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420626363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2680649 + ... + 2688255.

It is an arithmetic number, because the mean of its divisors is an integer number (773277120).

Almost surely, 2^20420626364 is an apocalyptic number.

It is an amenable number.

20420626364 is a deficient number, since it is larger than the sum of its proper divisors (16696675396).

20420626364 is a wasteful number, since it uses less digits than its factorization.

20420626364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898 (or 7896 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

The spelling of 20420626364 in words is "twenty billion, four hundred twenty million, six hundred twenty-six thousand, three hundred sixty-four".