20426622462620 has 48 divisors (see below), whose sum is σ = 46795860615168. Its totient is φ = 7427811044160.

The previous prime is 20426622462607. The next prime is 20426622462641. The reversal of 20426622462620 is 2626422662402.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47301317 + ... + 47731203.

It is an arithmetic number, because the mean of its divisors is an integer number (974913762816).

Almost surely, 2^{20426622462620} is an apocalyptic number.

20426622462620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20426622462620 is an abundant number, since it is smaller than the sum of its proper divisors (26369238152548).

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

20426622462620 is a wasteful number, since it uses less digits than its factorization.

20426622462620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645890 (or 645888 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 44.

The spelling of 20426622462620 in words is "twenty trillion, four hundred twenty-six billion, six hundred twenty-two million, four hundred sixty-two thousand, six hundred twenty".