19676675340 has 72 divisors (see below), whose sum is σ = 68212478880. Its totient is φ = 4497525504.

The previous prime is 19676675321. The next prime is 19676675377. The reversal of 19676675340 is 4357667691.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7806945 + ... + 7809464.

It is an arithmetic number, because the mean of its divisors is an integer number (947395540).

Almost surely, 2^19676675340 is an apocalyptic number.

19676675340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19676675340 is an abundant number, since it is smaller than the sum of its proper divisors (48535803540).

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

19676675340 is a wasteful number, since it uses less digits than its factorization.

19676675340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15616431 (or 15616426 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

It can be divided in two parts, 196 and 76675340, that added together give a triangular number (76675536 = T₁₂₃₈₃).

The spelling of 19676675340 in words is "nineteen billion, six hundred seventy-six million, six hundred seventy-five thousand, three hundred forty".