20112877386 has 96 divisors (see below), whose sum is σ = 52552281600. Its totient is φ = 5430823200.

The previous prime is 20112877381. The next prime is 20112877427. The reversal of 20112877386 is 68377821102.

It is not an unprimeable number, because it can be changed into a prime (20112877381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 993061 + ... + 1013111.

It is an arithmetic number, because the mean of its divisors is an integer number (547419600).

Almost surely, 2^20112877386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112877386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26276140800).

20112877386 is an abundant number, since it is smaller than the sum of its proper divisors (32439404214).

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

20112877386 is a wasteful number, since it uses less digits than its factorization.

20112877386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20504 (or 20501 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 20112877386 in words is "twenty billion, one hundred twelve million, eight hundred seventy-seven thousand, three hundred eighty-six".