20386862511708 has 384 divisors, whose sum is σ = 63265388691456. Its totient is φ = 4952362060800.

The previous prime is 20386862511703. The next prime is 20386862511713. The reversal of 20386862511708 is 80711526868302.

It is an interprime number because it is at equal distance from previous prime (20386862511703) and next prime (20386862511713).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20386862511703) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1059763866 + ... + 1059783102.

It is an arithmetic number, because the mean of its divisors is an integer number (164753616384).

Almost surely, 2^{20386862511708} is an apocalyptic number.

20386862511708 is a gapful number since it is divisible by the number (28) 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 20386862511708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31632694345728).

20386862511708 is an abundant number, since it is smaller than the sum of its proper divisors (42878526179748).

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

20386862511708 is a wasteful number, since it uses less digits than its factorization.

20386862511708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20393 (or 20391 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 20386862511708 in words is "twenty trillion, three hundred eighty-six billion, eight hundred sixty-two million, five hundred eleven thousand, seven hundred eight".