20042502002 has 12 divisors (see below), whose sum is σ = 31936236810. Its totient is φ = 9431765376.

The previous prime is 20042501993. The next prime is 20042502023. The reversal of 20042502002 is 20020524002.

It can be written as a sum of positive squares in 3 ways, for example, as 18460928641 + 1581573361 = 135871^2 + 39769^2 .

It is a super-3 number, since 3×20042502002³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17337227 + ... + 17338382.

Almost surely, 2^20042502002 is an apocalyptic number.

20042502002 is a deficient number, since it is larger than the sum of its proper divisors (11893734808).

20042502002 is a wasteful number, since it uses less digits than its factorization.

20042502002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34675645 (or 34675628 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The spelling of 20042502002 in words is "twenty billion, forty-two million, five hundred two thousand, two".