20860253236872 has 384 divisors, whose sum is σ = 70422866553600. Its totient is φ = 5603481870336.

The previous prime is 20860253236819. The next prime is 20860253236873. The reversal of 20860253236872 is 27863235206802.

20860253236872 is a `hidden beast` number, since 2 + 0 + 8 + 6 + 0 + 2 + 532 + 36 + 8 + 72 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (20860253236873) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 416405458 + ... + 416455550.

It is an arithmetic number, because the mean of its divisors is an integer number (183392881650).

Almost surely, 2^{20860253236872} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20860253236872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35211433276800).

20860253236872 is an abundant number, since it is smaller than the sum of its proper divisors (49562613316728).

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

20860253236872 is a wasteful number, since it uses less digits than its factorization.

20860253236872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51102 (or 51075 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 20860253236872 in words is "twenty trillion, eight hundred sixty billion, two hundred fifty-three million, two hundred thirty-six thousand, eight hundred seventy-two".