75721390341 has 8 divisors (see below), whose sum is σ = 101581252320. Its totient is φ = 50171227632.

The previous prime is 75721390321. The next prime is 75721390351. The reversal of 75721390341 is 14309312757.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75721390341 - 2⁵ = 75721390309 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 75721390293 and 75721390302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75721390321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77424246 + ... + 77425223.

It is an arithmetic number, because the mean of its divisors is an integer number (12697656540).

Almost surely, 2^75721390341 is an apocalyptic number.

It is an amenable number.

75721390341 is a deficient number, since it is larger than the sum of its proper divisors (25859861979).

75721390341 is a wasteful number, since it uses less digits than its factorization.

75721390341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154849635.

The product of its (nonzero) digits is 158760, while the sum is 42.

The spelling of 75721390341 in words is "seventy-five billion, seven hundred twenty-one million, three hundred ninety thousand, three hundred forty-one".