20078762762850 has 96 divisors (see below), whose sum is σ = 54343586430720. Its totient is φ = 4865660712000.

The previous prime is 20078762762833. The next prime is 20078762762897. The reversal of 20078762762850 is 5826726787002.

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1792945 + ... + 6585755.

It is an arithmetic number, because the mean of its divisors is an integer number (566079025320).

Almost surely, 2^{20078762762850} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20078762762850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27171793215360).

20078762762850 is an abundant number, since it is smaller than the sum of its proper divisors (34264823667870).

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

20078762762850 is a wasteful number, since it uses less digits than its factorization.

20078762762850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795376 (or 4795371 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 60.

The spelling of 20078762762850 in words is "twenty trillion, seventy-eight billion, seven hundred sixty-two million, seven hundred sixty-two thousand, eight hundred fifty".