19678132380 has 48 divisors (see below), whose sum is σ = 55119333024. Its totient is φ = 5245543680.

The previous prime is 19678132367. The next prime is 19678132403. The reversal of 19678132380 is 8323187691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104634 + ... + 224286.

It is an arithmetic number, because the mean of its divisors is an integer number (1148319438).

Almost surely, 2^19678132380 is an apocalyptic number.

19678132380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19678132380 is an abundant number, since it is smaller than the sum of its proper divisors (35441200644).

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

19678132380 is a wasteful number, since it uses less digits than its factorization.

19678132380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122406 (or 122404 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 19678132380 in words is "nineteen billion, six hundred seventy-eight million, one hundred thirty-two thousand, three hundred eighty".