19028927880 has 192 divisors, whose sum is σ = 65698776000. Its totient is φ = 4763017728.

The previous prime is 19028927791. The next prime is 19028927903. The reversal of 19028927880 is 8872982091.

19028927880 is a `hidden beast` number, since 1 + 90 + 289 + 278 + 8 + 0 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 732799 + ... + 758321.

It is an arithmetic number, because the mean of its divisors is an integer number (342181125).

Almost surely, 2^19028927880 is an apocalyptic number.

19028927880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19028927880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32849388000).

19028927880 is an abundant number, since it is smaller than the sum of its proper divisors (46669848120).

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

19028927880 is a wasteful number, since it uses less digits than its factorization.

19028927880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25668 (or 25661 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 19028927880 in words is "nineteen billion, twenty-eight million, nine hundred twenty-seven thousand, eight hundred eighty".