75040740705 has 32 divisors (see below), whose sum is σ = 141643726848. Its totient is φ = 33197745600.

The previous prime is 75040740667. The next prime is 75040740707. The reversal of 75040740705 is 50704704057.

It is not a de Polignac number, because 75040740705 - 2⁹ = 75040740193 is a prime.

It is a super-2 number, since 2×75040740705² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75040740707) 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, 11523741 + ... + 11530250.

It is an arithmetic number, because the mean of its divisors is an integer number (4426366464).

Almost surely, 2^75040740705 is an apocalyptic number.

It is an amenable number.

75040740705 is a deficient number, since it is larger than the sum of its proper divisors (66602986143).

75040740705 is a wasteful number, since it uses less digits than its factorization.

75040740705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23054037.

The product of its (nonzero) digits is 137200, while the sum is 39.

The spelling of 75040740705 in words is "seventy-five billion, forty million, seven hundred forty thousand, seven hundred five".