75112228861 has 2 divisors, whose sum is σ = 75112228862. Its totient is φ = 75112228860.

The previous prime is 75112228847. The next prime is 75112228897. The reversal of 75112228861 is 16882221157.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72430956900 + 2681271961 = 269130^2 + 51781^2 .

It is a cyclic number.

It is not a de Polignac number, because 75112228861 - 2⁹ = 75112228349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75112228801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37556114430 + 37556114431.

It is an arithmetic number, because the mean of its divisors is an integer number (37556114431).

Almost surely, 2^75112228861 is an apocalyptic number.

It is an amenable number.

75112228861 is a deficient number, since it is larger than the sum of its proper divisors (1).

75112228861 is an equidigital number, since it uses as much as digits as its factorization.

75112228861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 43.

The spelling of 75112228861 in words is "seventy-five billion, one hundred twelve million, two hundred twenty-eight thousand, eight hundred sixty-one".