20807415806028 has 48 divisors (see below), whose sum is σ = 51492051131136. Its totient is φ = 6525490340160.

The previous prime is 20807415805997. The next prime is 20807415806117. The reversal of 20807415806028 is 82060851470802.

It is a super-2 number, since 2×20807415806028² (a number of 27 digits) contains 22 as substring.

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, 617927326 + ... + 617960997.

It is an arithmetic number, because the mean of its divisors is an integer number (1072751065232).

Almost surely, 2^{20807415806028} is an apocalyptic number.

It is an amenable number.

20807415806028 is an abundant number, since it is smaller than the sum of its proper divisors (30684635325108).

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

20807415806028 is a wasteful number, since it uses less digits than its factorization.

20807415806028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235888414 (or 1235888412 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 20807415806028 in words is "twenty trillion, eight hundred seven billion, four hundred fifteen million, eight hundred six thousand, twenty-eight".