78946353019 has 8 divisors (see below), whose sum is σ = 81556766720. Its totient is φ = 76339924200.

The previous prime is 78946353011. The next prime is 78946353037. The reversal of 78946353019 is 91035364987.

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

It is not a de Polignac number, because 78946353019 - 2³ = 78946353011 is a prime.

It is a super-2 number, since 2×78946353019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78946353011) 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, 955917 + ... + 1035214.

It is an arithmetic number, because the mean of its divisors is an integer number (10194595840).

Almost surely, 2^78946353019 is an apocalyptic number.

78946353019 is a deficient number, since it is larger than the sum of its proper divisors (2610413701).

78946353019 is a wasteful number, since it uses less digits than its factorization.

78946353019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992441.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 78946353019 in words is "seventy-eight billion, nine hundred forty-six million, three hundred fifty-three thousand, nineteen".