20027850780 has 96 divisors (see below), whose sum is σ = 64291723776. Its totient is φ = 4563323136.

The previous prime is 20027850769. The next prime is 20027850797. The reversal of 20027850780 is 8705872002.

It is a super-2 number, since 2×20027850780² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57927 + ... + 208353.

It is an arithmetic number, because the mean of its divisors is an integer number (669705456).

Almost surely, 2^20027850780 is an apocalyptic number.

20027850780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20027850780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32145861888).

20027850780 is an abundant number, since it is smaller than the sum of its proper divisors (44263872996).

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

20027850780 is a wasteful number, since it uses less digits than its factorization.

20027850780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150763 (or 150761 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The spelling of 20027850780 in words is "twenty billion, twenty-seven million, eight hundred fifty thousand, seven hundred eighty".