7478257914 has 24 divisors (see below), whose sum is σ = 16205522580. Its totient is φ = 2492347968.

The previous prime is 7478257907. The next prime is 7478257921. The reversal of 7478257914 is 4197528747.

It is an interprime number because it is at equal distance from previous prime (7478257907) and next prime (7478257921).

It can be written as a sum of positive squares in 2 ways, for example, as 7330270689 + 147987225 = 85617^2 + 12165^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93132 + ... + 153720.

Almost surely, 2^7478257914 is an apocalyptic number.

7478257914 is an abundant number, since it is smaller than the sum of its proper divisors (8727264666).

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

7478257914 is a wasteful number, since it uses less digits than its factorization.

7478257914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67454 (or 67451 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 54.

The square root of 7478257914 is about 86476.9212796108. The cubic root of 7478257914 is about 1955.5404923209.

The spelling of 7478257914 in words is "seven billion, four hundred seventy-eight million, two hundred fifty-seven thousand, nine hundred fourteen".