20214636396786 has 56 divisors (see below), whose sum is σ = 48959222290860. Its totient is φ = 6219888116256.

The previous prime is 20214636396781. The next prime is 20214636396803. The reversal of 20214636396786 is 68769363641202.

20214636396786 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 463 + 6 + 3 + 96 + 7 + 86 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20149603746561 + 65032650225 = 4488831^2 + 255015^2 .

It is a super-2 number, since 2×20214636396786² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20214636396781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 533236201 + ... + 533274108.

Almost surely, 2^{20214636396786} is an apocalyptic number.

20214636396786 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20214636396786 is an abundant number, since it is smaller than the sum of its proper divisors (28744585894074).

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

20214636396786 is a wasteful number, since it uses less digits than its factorization.

20214636396786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066510342 (or 1066510327 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 63.

The spelling of 20214636396786 in words is "twenty trillion, two hundred fourteen billion, six hundred thirty-six million, three hundred ninety-six thousand, seven hundred eighty-six".