75251412989 has 2 divisors, whose sum is σ = 75251412990. Its totient is φ = 75251412988.

The previous prime is 75251412983. The next prime is 75251413021. The reversal of 75251412989 is 98921415257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74888700964 + 362712025 = 273658^2 + 19045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75251412989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75251412989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75251412983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37625706494 + 37625706495.

It is an arithmetic number, because the mean of its divisors is an integer number (37625706495).

Almost surely, 2^75251412989 is an apocalyptic number.

It is an amenable number.

75251412989 is a deficient number, since it is larger than the sum of its proper divisors (1).

75251412989 is an equidigital number, since it uses as much as digits as its factorization.

75251412989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 53.

The spelling of 75251412989 in words is "seventy-five billion, two hundred fifty-one million, four hundred twelve thousand, nine hundred eighty-nine".