20747862008874 has 1280 divisors, whose sum is σ = 65925948211200. Its totient is φ = 4703932569600.

The previous prime is 20747862008869. The next prime is 20747862008927. The reversal of 20747862008874 is 47880026874702.

20747862008874 is a `hidden beast` number, since 20 + 7 + 478 + 62 + 0 + 0 + 8 + 87 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 77129598412 + ... + 77129598680.

It is an arithmetic number, because the mean of its divisors is an integer number (51504647040).

Almost surely, 2^{20747862008874} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20747862008874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32962974105600).

20747862008874 is an abundant number, since it is smaller than the sum of its proper divisors (45178086202326).

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

20747862008874 is a wasteful number, since it uses less digits than its factorization.

20747862008874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 67436544, while the sum is 63.

The spelling of 20747862008874 in words is "twenty trillion, seven hundred forty-seven billion, eight hundred sixty-two million, eight thousand, eight hundred seventy-four".