78105448374 has 8 divisors (see below), whose sum is σ = 156210896760. Its totient is φ = 26035149456.

The previous prime is 78105448361. The next prime is 78105448409. The reversal of 78105448374 is 47384450187.

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

78105448374 is an admirable number.

It is a super-2 number, since 2×78105448374² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6508787359 + ... + 6508787370.

It is an arithmetic number, because the mean of its divisors is an integer number (19526362095).

Almost surely, 2^78105448374 is an apocalyptic number.

78105448374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78105448374 is a wasteful number, since it uses less digits than its factorization.

78105448374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13017574734.

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 78105448374 in words is "seventy-eight billion, one hundred five million, four hundred forty-eight thousand, three hundred seventy-four".