19676401245 has 24 divisors (see below), whose sum is σ = 34831420416. Its totient is φ = 10270801248.

The previous prime is 19676401231. The next prime is 19676401247. The reversal of 19676401245 is 54210467691.

It is not a de Polignac number, because 19676401245 - 2⁷ = 19676401117 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 19676401245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19676401247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4649517 + ... + 4653746.

It is an arithmetic number, because the mean of its divisors is an integer number (1451309184).

Almost surely, 2^19676401245 is an apocalyptic number.

19676401245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19676401245 is a deficient number, since it is larger than the sum of its proper divisors (15155019171).

19676401245 is a wasteful number, since it uses less digits than its factorization.

19676401245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9303321 (or 9303318 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 19676401245 in words is "nineteen billion, six hundred seventy-six million, four hundred one thousand, two hundred forty-five".