20001850002 has 12 divisors (see below), whose sum is σ = 43337341710. Its totient is φ = 6667283328.

The previous prime is 20001849997. The next prime is 20001850007. The reversal of 20001850002 is 20005810002.

It is an interprime number because it is at equal distance from previous prime (20001849997) and next prime (20001850007).

It can be written as a sum of positive squares in only one way, i.e., 11337777441 + 8664072561 = 106479^2 + 93081^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1111213889 = 20001850002 / (2 + 0 + 0 + 0 + 1 + 8 + 5 + 0 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (20001850007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555606927 + ... + 555606962.

Almost surely, 2^20001850002 is an apocalyptic number.

20001850002 is an abundant number, since it is smaller than the sum of its proper divisors (23335491708).

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

20001850002 is a wasteful number, since it uses less digits than its factorization.

20001850002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111213897 (or 1111213894 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The spelling of 20001850002 in words is "twenty billion, one million, eight hundred fifty thousand, two".