20019464127 has 24 divisors (see below), whose sum is σ = 31157423024. Its totient is φ = 12313327104.

The previous prime is 20019464117. The next prime is 20019464137. The reversal of 20019464127 is 72146491002.

It is a happy number.

20019464127 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 9 + 4 + 641 + 2 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (20019464117) and next prime (20019464137).

It is not a de Polignac number, because 20019464127 - 2¹⁰ = 20019463103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20019464091 and 20019464100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20019464107) 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, 189423 + ... + 275535.

Almost surely, 2^20019464127 is an apocalyptic number.

20019464127 is a deficient number, since it is larger than the sum of its proper divisors (11137958897).

20019464127 is a wasteful number, since it uses less digits than its factorization.

20019464127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88119 (or 88116 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20019464127 in words is "twenty billion, nineteen million, four hundred sixty-four thousand, one hundred twenty-seven".