875001430237661 has 4 divisors (see below), whose sum is σ = 889345715979324. Its totient is φ = 860657144496000.

The previous prime is 875001430237637. The next prime is 875001430237699. The reversal of 875001430237661 is 166732034100578.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 456354270002500 + 418647160235161 = 21362450^2 + 20460869^2 .

It is a cyclic number.

It is not a de Polignac number, because 875001430237661 - 2¹⁴ = 875001430221277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (875001430237621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7172142870740 + ... + 7172142870861.

It is an arithmetic number, because the mean of its divisors is an integer number (222336428994831).

Almost surely, 2^{875001430237661} is an apocalyptic number.

It is an amenable number.

875001430237661 is a deficient number, since it is larger than the sum of its proper divisors (14344285741663).

875001430237661 is a wasteful number, since it uses less digits than its factorization.

875001430237661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14344285741662.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 875001430237661 in words is "eight hundred seventy-five trillion, one billion, four hundred thirty million, two hundred thirty-seven thousand, six hundred sixty-one".