7487745474 has 64 divisors (see below), whose sum is σ = 16633663488. Its totient is φ = 2246737680.

The previous prime is 7487745457. The next prime is 7487745491. The reversal of 7487745474 is 4745477847.

It is an interprime number because it is at equal distance from previous prime (7487745457) and next prime (7487745491).

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, 818007 + ... + 827109.

It is an arithmetic number, because the mean of its divisors is an integer number (259900992).

Almost surely, 2^7487745474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7487745474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8316831744).

7487745474 is an abundant number, since it is smaller than the sum of its proper divisors (9145918014).

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

7487745474 is a wasteful number, since it uses less digits than its factorization.

7487745474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9244 (or 9222 counting only the distinct ones).

The product of its digits is 24586240, while the sum is 57.

The square root of 7487745474 is about 86531.7599150740. The cubic root of 7487745474 is about 1956.3671316882.

The spelling of 7487745474 in words is "seven billion, four hundred eighty-seven million, seven hundred forty-five thousand, four hundred seventy-four".