20624436756426 has 32 divisors (see below), whose sum is σ = 41670175377600. Its totient is φ = 6804725189760.

The previous prime is 20624436756403. The next prime is 20624436756449. The reversal of 20624436756426 is 62465763442602.

It is an interprime number because it is at equal distance from previous prime (20624436756403) and next prime (20624436756449).

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, 15603811 + ... + 16873878.

It is an arithmetic number, because the mean of its divisors is an integer number (1302192980550).

Almost surely, 2^{20624436756426} is an apocalyptic number.

20624436756426 is an abundant number, since it is smaller than the sum of its proper divisors (21045738621174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20624436756426 is a wasteful number, since it uses less digits than its factorization.

20624436756426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32478774.

The product of its (nonzero) digits is 69672960, while the sum is 57.

The spelling of 20624436756426 in words is "twenty trillion, six hundred twenty-four billion, four hundred thirty-six million, seven hundred fifty-six thousand, four hundred twenty-six".