20285825758 has 48 divisors (see below), whose sum is σ = 34746930288. Its totient is φ = 8803664000.

The previous prime is 20285825753. The next prime is 20285825761. The reversal of 20285825758 is 85752858202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20285825753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1987428 + ... + 1997608.

It is an arithmetic number, because the mean of its divisors is an integer number (723894381).

Almost surely, 2^20285825758 is an apocalyptic number.

20285825758 is a deficient number, since it is larger than the sum of its proper divisors (14461104530).

20285825758 is a wasteful number, since it uses less digits than its factorization.

20285825758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10329 (or 10282 counting only the distinct ones).

The product of its (nonzero) digits is 3584000, while the sum is 52.

The spelling of 20285825758 in words is "twenty billion, two hundred eighty-five million, eight hundred twenty-five thousand, seven hundred fifty-eight".