75541740731 has 4 divisors (see below), whose sum is σ = 75857815200. Its totient is φ = 75225666264.

The previous prime is 75541740649. The next prime is 75541740763. The reversal of 75541740731 is 13704714557.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13704714557 = 37619 ⋅364303.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75541740731 is a prime.

It is a super-2 number, since 2×75541740731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75541745731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158036876 + ... + 158037353.

It is an arithmetic number, because the mean of its divisors is an integer number (18964453800).

Almost surely, 2^75541740731 is an apocalyptic number.

75541740731 is a deficient number, since it is larger than the sum of its proper divisors (316074469).

75541740731 is a wasteful number, since it uses less digits than its factorization.

75541740731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316074468.

The product of its (nonzero) digits is 411600, while the sum is 44.

The spelling of 75541740731 in words is "seventy-five billion, five hundred forty-one million, seven hundred forty thousand, seven hundred thirty-one".