75897252139 has 2 divisors, whose sum is σ = 75897252140. Its totient is φ = 75897252138.

The previous prime is 75897252127. The next prime is 75897252143. The reversal of 75897252139 is 93125279857.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75897252139 - 2²¹ = 75895154987 is a prime.

It is not a weakly prime, because it can be changed into another prime (75897250139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37948626069 + 37948626070.

It is an arithmetic number, because the mean of its divisors is an integer number (37948626070).

Almost surely, 2^75897252139 is an apocalyptic number.

75897252139 is a deficient number, since it is larger than the sum of its proper divisors (1).

75897252139 is an equidigital number, since it uses as much as digits as its factorization.

75897252139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9525600, while the sum is 58.

The spelling of 75897252139 in words is "seventy-five billion, eight hundred ninety-seven million, two hundred fifty-two thousand, one hundred thirty-nine".