7404745523728 has 40 divisors (see below), whose sum is σ = 16525326374912. Its totient is φ = 3148474468608.

The previous prime is 7404745523711. The next prime is 7404745523771. The reversal of 7404745523728 is 8273255474047.

It is a happy number.

It is a super-2 number, since 2×7404745523728² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260276325 + ... + 260304772.

Almost surely, 2^{7404745523728} is an apocalyptic number.

It is an amenable number.

7404745523728 is an abundant number, since it is smaller than the sum of its proper divisors (9120580851184).

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

7404745523728 is a wasteful number, since it uses less digits than its factorization.

7404745523728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520581239 (or 520581233 counting only the distinct ones).

The product of its (nonzero) digits is 52684800, while the sum is 58.

The spelling of 7404745523728 in words is "seven trillion, four hundred four billion, seven hundred forty-five million, five hundred twenty-three thousand, seven hundred twenty-eight".