75427375840 has 48 divisors (see below), whose sum is σ = 178223310720. Its totient is φ = 30166525440.

The previous prime is 75427375787. The next prime is 75427375847. The reversal of 75427375840 is 4857372457.

It is a super-2 number, since 2×75427375840² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75427375847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196305 + ... + 1257775.

It is an arithmetic number, because the mean of its divisors is an integer number (3712985640).

Almost surely, 2^75427375840 is an apocalyptic number.

It is an amenable number.

75427375840 is an abundant number, since it is smaller than the sum of its proper divisors (102795934880).

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

75427375840 is a wasteful number, since it uses less digits than its factorization.

75427375840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69155 (or 69147 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 52.

The spelling of 75427375840 in words is "seventy-five billion, four hundred twenty-seven million, three hundred seventy-five thousand, eight hundred forty".