875504217149 has 2 divisors, whose sum is σ = 875504217150. Its totient is φ = 875504217148.

The previous prime is 875504217103. The next prime is 875504217167. The reversal of 875504217149 is 941712405578.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659425202500 + 216079014649 = 812050^2 + 464843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-875504217149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 875504217149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (875504217179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437752108574 + 437752108575.

It is an arithmetic number, because the mean of its divisors is an integer number (437752108575).

Almost surely, 2^875504217149 is an apocalyptic number.

It is an amenable number.

875504217149 is a deficient number, since it is larger than the sum of its proper divisors (1).

875504217149 is an equidigital number, since it uses as much as digits as its factorization.

875504217149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2822400, while the sum is 53.

The spelling of 875504217149 in words is "eight hundred seventy-five billion, five hundred four million, two hundred seventeen thousand, one hundred forty-nine".