7478400714078 has 32 divisors (see below), whose sum is σ = 17094605089536. Its totient is φ = 2136546200448.

The previous prime is 7478400714017. The next prime is 7478400714079. The reversal of 7478400714078 is 8704170048747.

It is a Smith number, since the sum of its digits (57) 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 not an unprimeable number, because it can be changed into a prime (7478400714079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5170776 + ... + 6457067.

It is an arithmetic number, because the mean of its divisors is an integer number (534206409048).

Almost surely, 2^{7478400714078} is an apocalyptic number.

7478400714078 is an abundant number, since it is smaller than the sum of its proper divisors (9616204375458).

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

7478400714078 is a wasteful number, since it uses less digits than its factorization.

7478400714078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11643168.

The product of its (nonzero) digits is 9834496, while the sum is 57.

The spelling of 7478400714078 in words is "seven trillion, four hundred seventy-eight billion, four hundred million, seven hundred fourteen thousand, seventy-eight".