986585046401 has 4 divisors (see below), whose sum is σ = 987822920532. Its totient is φ = 985347172272.

The previous prime is 986585046397. The next prime is 986585046409. The reversal of 986585046401 is 104640585689.

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 248600962801 + 737984083600 = 498599^2 + 859060^2 .

It is a cyclic number.

It is not a de Polignac number, because 986585046401 - 2² = 986585046397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (986585046409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618935870 + ... + 618937463.

It is an arithmetic number, because the mean of its divisors is an integer number (246955730133).

Almost surely, 2^986585046401 is an apocalyptic number.

It is an amenable number.

986585046401 is a deficient number, since it is larger than the sum of its proper divisors (1237874131).

986585046401 is a wasteful number, since it uses less digits than its factorization.

986585046401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237874130.

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 986585046401 in words is "nine hundred eighty-six billion, five hundred eighty-five million, forty-six thousand, four hundred one".