19678046697 has 12 divisors (see below), whose sum is σ = 28425069504. Its totient is φ = 13118132760.

The previous prime is 19678046671. The next prime is 19678046701. The reversal of 19678046697 is 79664087691.

19678046697 is a `hidden beast` number, since 1 + 9 + 6 + 7 + 80 + 466 + 97 = 666.

It is not a de Polignac number, because 19678046697 - 2¹⁹ = 19677522409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19678046627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347572 + ... + 400202.

It is an arithmetic number, because the mean of its divisors is an integer number (2368755792).

Almost surely, 2^19678046697 is an apocalyptic number.

It is an amenable number.

19678046697 is a deficient number, since it is larger than the sum of its proper divisors (8747022807).

19678046697 is a wasteful number, since it uses less digits than its factorization.

19678046697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94180 (or 94177 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 19678046697 in words is "nineteen billion, six hundred seventy-eight million, forty-six thousand, six hundred ninety-seven".