19678414670 has 32 divisors (see below), whose sum is σ = 37078788096. Its totient is φ = 7510154400.

The previous prime is 19678414649. The next prime is 19678414709. The reversal of 19678414670 is 7641487691.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

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, 425024 + ... + 469043.

It is an arithmetic number, because the mean of its divisors is an integer number (1158712128).

Almost surely, 2^19678414670 is an apocalyptic number.

19678414670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19678414670 is a deficient number, since it is larger than the sum of its proper divisors (17400373426).

19678414670 is a wasteful number, since it uses less digits than its factorization.

19678414670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894176.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 19678414670 in words is "nineteen billion, six hundred seventy-eight million, four hundred fourteen thousand, six hundred seventy".