75871404402001 has 16 divisors (see below), whose sum is σ = 86534712636624. Its totient is φ = 65899646889984.

The previous prime is 75871404401957. The next prime is 75871404402011. The reversal of 75871404402001 is 10020440417857.

It can be written as a sum of positive squares in 8 ways, for example, as 7985999054401 + 67885405347600 = 2825951^2 + 8239260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75871404402001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75871404402011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40172110 + ... + 42018343.

It is an arithmetic number, because the mean of its divisors is an integer number (5408419539789).

Almost surely, 2^{75871404402001} is an apocalyptic number.

It is an amenable number.

75871404402001 is a deficient number, since it is larger than the sum of its proper divisors (10663308234623).

75871404402001 is a wasteful number, since it uses less digits than its factorization.

75871404402001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82194660.

The product of its (nonzero) digits is 250880, while the sum is 43.

Adding to 75871404402001 its reverse (10020440417857), we get a palindrome (85891844819858).

The spelling of 75871404402001 in words is "seventy-five trillion, eight hundred seventy-one billion, four hundred four million, four hundred two thousand, one".