75485874645 has 16 divisors (see below), whose sum is σ = 134197110720. Its totient is φ = 40259133072.

The previous prime is 75485874641. The next prime is 75485874647. The reversal of 75485874645 is 54647858457.

75485874645 is a `hidden beast` number, since 7 + 5 + 4 + 8 + 587 + 4 + 6 + 45 = 666.

It is not a de Polignac number, because 75485874645 - 2² = 75485874641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75485874641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279577179 + ... + 279577448.

It is an arithmetic number, because the mean of its divisors is an integer number (8387319420).

Almost surely, 2^75485874645 is an apocalyptic number.

It is an amenable number.

75485874645 is a deficient number, since it is larger than the sum of its proper divisors (58711236075).

75485874645 is a wasteful number, since it uses less digits than its factorization.

75485874645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559154641 (or 559154635 counting only the distinct ones).

The product of its digits is 150528000, while the sum is 63.

The spelling of 75485874645 in words is "seventy-five billion, four hundred eighty-five million, eight hundred seventy-four thousand, six hundred forty-five".