7478635138746 has 16 divisors (see below), whose sum is σ = 15040830448800. Its totient is φ = 2478951684368.

The previous prime is 7478635138693. The next prime is 7478635138747. The reversal of 7478635138746 is 6478315368747.

It is not an unprimeable number, because it can be changed into a prime (7478635138747) 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, 3481672641 + ... + 3481674788.

It is an arithmetic number, because the mean of its divisors is an integer number (940051903050).

Almost surely, 2^{7478635138746} is an apocalyptic number.

7478635138746 is an abundant number, since it is smaller than the sum of its proper divisors (7562195310054).

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

7478635138746 is a wasteful number, since it uses less digits than its factorization.

7478635138746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6963347613.

The product of its digits is 568995840, while the sum is 69.

The spelling of 7478635138746 in words is "seven trillion, four hundred seventy-eight billion, six hundred thirty-five million, one hundred thirty-eight thousand, seven hundred forty-six".