7478316534 has 64 divisors (see below), whose sum is σ = 16515442944. Its totient is φ = 2242912896.

The previous prime is 7478316523. The next prime is 7478316551. The reversal of 7478316534 is 4356138747.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1866177 + ... + 1870179.

It is an arithmetic number, because the mean of its divisors is an integer number (258053796).

Almost surely, 2^7478316534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7478316534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8257721472).

7478316534 is an abundant number, since it is smaller than the sum of its proper divisors (9037126410).

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

7478316534 is a wasteful number, since it uses less digits than its factorization.

7478316534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4621.

The product of its digits is 1693440, while the sum is 48.

The square root of 7478316534 is about 86477.2602133069. The cubic root of 7478316534 is about 1955.5456019550.

The spelling of 7478316534 in words is "seven billion, four hundred seventy-eight million, three hundred sixteen thousand, five hundred thirty-four".