78347420631043 has 8 divisors (see below), whose sum is σ = 80248546929600. Its totient is φ = 76465401129768.

The previous prime is 78347420630971. The next prime is 78347420631047. The reversal of 78347420631043 is 34013602474387.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78347420631043 is a prime.

It is a super-2 number, since 2×78347420631043² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78347420631047) 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 7 ways as a sum of consecutive naturals, for example, 4776691021 + ... + 4776707422.

It is an arithmetic number, because the mean of its divisors is an integer number (10031068366200).

Almost surely, 2^{78347420631043} is an apocalyptic number.

78347420631043 is a deficient number, since it is larger than the sum of its proper divisors (1901126298557).

78347420631043 is a wasteful number, since it uses less digits than its factorization.

78347420631043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9553398641.

The product of its (nonzero) digits is 8128512, while the sum is 52.

The spelling of 78347420631043 in words is "seventy-eight trillion, three hundred forty-seven billion, four hundred twenty million, six hundred thirty-one thousand, forty-three".