20419875892 has 24 divisors (see below), whose sum is σ = 38711342600. Its totient is φ = 9424554048.

The previous prime is 20419875887. The next prime is 20419875911. The reversal of 20419875892 is 29857891402.

It can be written as a sum of positive squares in 4 ways, for example, as 6508616976 + 13911258916 = 80676^2 + 117946^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153017 + ... + 1170592.

Almost surely, 2^20419875892 is an apocalyptic number.

It is an amenable number.

20419875892 is a deficient number, since it is larger than the sum of its proper divisors (18291466708).

20419875892 is a wasteful number, since it uses less digits than its factorization.

20419875892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323652 (or 2323624 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 20419875892 in words is "twenty billion, four hundred nineteen million, eight hundred seventy-five thousand, eight hundred ninety-two".