19765714128 has 40 divisors (see below), whose sum is σ = 51066621408. Its totient is φ = 6587901312.

The previous prime is 19765714109. The next prime is 19765714147. The reversal of 19765714128 is 82141756791.

It is an interprime number because it is at equal distance from previous prime (19765714109) and next prime (19765714147).

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, 744051 + ... + 770157.

Almost surely, 2^19765714128 is an apocalyptic number.

It is an amenable number.

19765714128 is an abundant number, since it is smaller than the sum of its proper divisors (31300907280).

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

19765714128 is a wasteful number, since it uses less digits than its factorization.

19765714128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41891 (or 41885 counting only the distinct ones).

The product of its digits is 846720, while the sum is 51.

The spelling of 19765714128 in words is "nineteen billion, seven hundred sixty-five million, seven hundred fourteen thousand, one hundred twenty-eight".