20364213870 has 384 divisors, whose sum is σ = 74837468160. Its totient is φ = 3700131840.

The previous prime is 20364213841. The next prime is 20364213893. The reversal of 20364213870 is 7831246302.

It is a happy number.

20364213870 is a `hidden beast` number, since 2 + 0 + 3 + 642 + 1 + 3 + 8 + 7 + 0 = 666.

20364213870 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1705762 + ... + 1717658.

It is an arithmetic number, because the mean of its divisors is an integer number (194889240).

Almost surely, 2^20364213870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20364213870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37418734080).

20364213870 is an abundant number, since it is smaller than the sum of its proper divisors (54473254290).

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

20364213870 is a wasteful number, since it uses less digits than its factorization.

20364213870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11960 (or 11957 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 20364213870 in words is "twenty billion, three hundred sixty-four million, two hundred thirteen thousand, eight hundred seventy".