75356838149 has 2 divisors, whose sum is σ = 75356838150. Its totient is φ = 75356838148.

The previous prime is 75356838113. The next prime is 75356838203. The reversal of 75356838149 is 94183865357.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67065460900 + 8291377249 = 258970^2 + 91057^2 .

It is a cyclic number.

It is not a de Polignac number, because 75356838149 - 2¹² = 75356834053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75356834149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37678419074 + 37678419075.

It is an arithmetic number, because the mean of its divisors is an integer number (37678419075).

Almost surely, 2^75356838149 is an apocalyptic number.

It is an amenable number.

75356838149 is a deficient number, since it is larger than the sum of its proper divisors (1).

75356838149 is an equidigital number, since it uses as much as digits as its factorization.

75356838149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 59.

The spelling of 75356838149 in words is "seventy-five billion, three hundred fifty-six million, eight hundred thirty-eight thousand, one hundred forty-nine".