75505887723 has 32 divisors (see below), whose sum is σ = 118150742016. Its totient is φ = 41998739328.

The previous prime is 75505887689. The next prime is 75505887733. The reversal of 75505887723 is 32778850557.

It is not a de Polignac number, because 75505887723 - 2⁶ = 75505887659 is a prime.

It is a super-2 number, since 2×75505887723² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75505887733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125736 + ... + 408437.

It is an arithmetic number, because the mean of its divisors is an integer number (3692210688).

Almost surely, 2^75505887723 is an apocalyptic number.

75505887723 is a deficient number, since it is larger than the sum of its proper divisors (42644854293).

75505887723 is a wasteful number, since it uses less digits than its factorization.

75505887723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534363.

The product of its (nonzero) digits is 16464000, while the sum is 57.

The spelling of 75505887723 in words is "seventy-five billion, five hundred five million, eight hundred eighty-seven thousand, seven hundred twenty-three".