19482802640 has 40 divisors (see below), whose sum is σ = 51768591360. Its totient is φ = 6679817856.

The previous prime is 19482802631. The next prime is 19482802687. The reversal of 19482802640 is 4620828491.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 19482802591 and 19482802600.

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, 17394800 + ... + 17395919.

It is an arithmetic number, because the mean of its divisors is an integer number (1294214784).

Almost surely, 2^19482802640 is an apocalyptic number.

19482802640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19482802640 is an abundant number, since it is smaller than the sum of its proper divisors (32285788720).

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

19482802640 is a wasteful number, since it uses less digits than its factorization.

19482802640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34790739 (or 34790733 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 19482802640 in words is "nineteen billion, four hundred eighty-two million, eight hundred two thousand, six hundred forty".