75481776 has 120 divisors (see below), whose sum is σ = 224441984. Its totient is φ = 23639040.

The previous prime is 75481771. The next prime is 75481801. The reversal of 75481776 is 67718457.

It is a super-2 number, since 2×75481776² = 11394997016228352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75481771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164940 + ... + 165396.

Almost surely, 2^75481776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75481776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112220992).

75481776 is an abundant number, since it is smaller than the sum of its proper divisors (148960208).

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

75481776 is a wasteful number, since it uses less digits than its factorization.

75481776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 530 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 75481776 is about 8688.0248618429. The cubic root of 75481776 is about 422.6173962720.

The spelling of 75481776 in words is "seventy-five million, four hundred eighty-one thousand, seven hundred seventy-six".