75975946221 has 12 divisors (see below), whose sum is σ = 115774795232. Its totient is φ = 43414104624.

The previous prime is 75975946183. The next prime is 75975946237. The reversal of 75975946221 is 12264957957.

It is not a de Polignac number, because 75975946221 - 2⁶ = 75975946157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75970946221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1233055 + ... + 1293203.

Almost surely, 2^75975946221 is an apocalyptic number.

It is an amenable number.

75975946221 is a deficient number, since it is larger than the sum of its proper divisors (39798849011).

75975946221 is an frugal number, since it uses more digits than its factorization.

75975946221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120308 (or 60159 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 57.

The spelling of 75975946221 in words is "seventy-five billion, nine hundred seventy-five million, nine hundred forty-six thousand, two hundred twenty-one".