19474039678 has 8 divisors (see below), whose sum is σ = 29306210472. Its totient is φ = 9705302856.

The previous prime is 19474039601. The next prime is 19474039681. The reversal of 19474039678 is 87693047491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15857725 + ... + 15858952.

It is an arithmetic number, because the mean of its divisors is an integer number (3663276309).

Almost surely, 2^19474039678 is an apocalyptic number.

19474039678 is a deficient number, since it is larger than the sum of its proper divisors (9832170794).

19474039678 is a wasteful number, since it uses less digits than its factorization.

19474039678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31716986.

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 19474039678 in words is "nineteen billion, four hundred seventy-four million, thirty-nine thousand, six hundred seventy-eight".