20413630013426 has 64 divisors (see below), whose sum is σ = 35385058759680. Its totient is φ = 8752758393600.

The previous prime is 20413630013423. The next prime is 20413630013429. The reversal of 20413630013426 is 62431003631402.

It is an interprime number because it is at equal distance from previous prime (20413630013423) and next prime (20413630013429).

It is not an unprimeable number, because it can be changed into a prime (20413630013423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49566911 + ... + 49977053.

It is an arithmetic number, because the mean of its divisors is an integer number (552891543120).

Almost surely, 2^{20413630013426} is an apocalyptic number.

20413630013426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20413630013426 is a deficient number, since it is larger than the sum of its proper divisors (14971428746254).

20413630013426 is a wasteful number, since it uses less digits than its factorization.

20413630013426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412131.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 20413630013426 its reverse (62431003631402), we get a palindrome (82844633644828).

The spelling of 20413630013426 in words is "twenty trillion, four hundred thirteen billion, six hundred thirty million, thirteen thousand, four hundred twenty-six".