20423705092 has 18 divisors (see below), whose sum is σ = 41576828622. Its totient is φ = 8753016384.

The previous prime is 20423705083. The next prime is 20423705101. The reversal of 20423705092 is 29050732402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20423705083) and next prime (20423705101).

It can be written as a sum of positive squares in only one way, i.e., 19408390596 + 1015314496 = 139314^2 + 31864^2 .

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, 52101093 + ... + 52101484.

Almost surely, 2^20423705092 is an apocalyptic number.

It is an amenable number.

20423705092 is an abundant number, since it is smaller than the sum of its proper divisors (21153123530).

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

20423705092 is a wasteful number, since it uses less digits than its factorization.

20423705092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104202595 (or 104202586 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 20423705092 in words is "twenty billion, four hundred twenty-three million, seven hundred five thousand, ninety-two".