19880830536 has 64 divisors (see below), whose sum is σ = 56813404800. Its totient is φ = 5679134208.

The previous prime is 19880830507. The next prime is 19880830537. The reversal of 19880830536 is 63503808891.

It is not an unprimeable number, because it can be changed into a prime (19880830537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1300956 + ... + 1316148.

It is an arithmetic number, because the mean of its divisors is an integer number (887709450).

Almost surely, 2^19880830536 is an apocalyptic number.

It is an amenable number.

19880830536 is an abundant number, since it is smaller than the sum of its proper divisors (36932574264).

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

19880830536 is a wasteful number, since it uses less digits than its factorization.

19880830536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22998 (or 22994 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 19880830536 in words is "nineteen billion, eight hundred eighty million, eight hundred thirty thousand, five hundred thirty-six".