19674248678 has 16 divisors (see below), whose sum is σ = 34298933760. Its totient is φ = 8288908296.

The previous prime is 19674248677. The next prime is 19674248683. The reversal of 19674248678 is 87684247691.

19674248678 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×19674248678² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19674248678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19674248677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11908526 + ... + 11910177.

It is an arithmetic number, because the mean of its divisors is an integer number (2143683360).

Almost surely, 2^19674248678 is an apocalyptic number.

19674248678 is a deficient number, since it is larger than the sum of its proper divisors (14624685082).

19674248678 is a wasteful number, since it uses less digits than its factorization.

19674248678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23818771.

The product of its digits is 32514048, while the sum is 62.

The spelling of 19674248678 in words is "nineteen billion, six hundred seventy-four million, two hundred forty-eight thousand, six hundred seventy-eight".