7557945752 has 16 divisors (see below), whose sum is σ = 16195598160. Its totient is φ = 3239119584.

The previous prime is 7557945739. The next prime is 7557945757. The reversal of 7557945752 is 2575497557.

It is a Harshad number since it is a multiple of its sum of digits (56), and also a Moran number because the ratio is a prime number: 134963317 = 7557945752 / (7 + 5 + 5 + 7 + 9 + 4 + 5 + 7 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7557945757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67481603 + ... + 67481714.

It is an arithmetic number, because the mean of its divisors is an integer number (1012224885).

Almost surely, 2^7557945752 is an apocalyptic number.

It is an amenable number.

7557945752 is an abundant number, since it is smaller than the sum of its proper divisors (8637652408).

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

7557945752 is a wasteful number, since it uses less digits than its factorization.

7557945752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134963330 (or 134963326 counting only the distinct ones).

The product of its digits is 15435000, while the sum is 56.

The square root of 7557945752 is about 86936.4466262568. The cubic root of 7557945752 is about 1962.4620033051.

The spelling of 7557945752 in words is "seven billion, five hundred fifty-seven million, nine hundred forty-five thousand, seven hundred fifty-two".