20259387940752 has 60 divisors (see below), whose sum is σ = 57335206076460. Its totient is φ = 6677251451904.

The previous prime is 20259387940747. The next prime is 20259387940829. The reversal of 20259387940752 is 25704978395202.

20259387940752 is a `hidden beast` number, since 2 + 0 + 25 + 93 + 8 + 79 + 407 + 52 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13633108828416 + 6626279112336 = 3692304^2 + 2574156^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20259387940752.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 790381533 + ... + 790407164.

It is an arithmetic number, because the mean of its divisors is an integer number (955586767941).

Almost surely, 2^{20259387940752} is an apocalyptic number.

It is an amenable number.

20259387940752 is an abundant number, since it is smaller than the sum of its proper divisors (37075818135708).

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

20259387940752 is a wasteful number, since it uses less digits than its factorization.

20259387940752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580788800 (or 1580788791 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 63.

The spelling of 20259387940752 in words is "twenty trillion, two hundred fifty-nine billion, three hundred eighty-seven million, nine hundred forty thousand, seven hundred fifty-two".