20860472652 has 12 divisors (see below), whose sum is σ = 48674436216. Its totient is φ = 6953490880.

The previous prime is 20860472641. The next prime is 20860472657. The reversal of 20860472652 is 25627406802.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20860472657) 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 3 ways as a sum of consecutive naturals, for example, 869186349 + ... + 869186372.

It is an arithmetic number, because the mean of its divisors is an integer number (4056203018).

Almost surely, 2^20860472652 is an apocalyptic number.

It is an amenable number.

20860472652 is an abundant number, since it is smaller than the sum of its proper divisors (27813963564).

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

20860472652 is a wasteful number, since it uses less digits than its factorization.

20860472652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738372728 (or 1738372726 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 20860472652 in words is "twenty billion, eight hundred sixty million, four hundred seventy-two thousand, six hundred fifty-two".