89746986641 has 8 divisors (see below), whose sum is σ = 96654194280. Its totient is φ = 82840292352.

The previous prime is 89746986629. The next prime is 89746986661. The reversal of 89746986641 is 14668964798.

It can be written as a sum of positive squares in 4 ways, for example, as 20080023616 + 69666963025 = 141704^2 + 263945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89746986641 - 2¹⁰ = 89746985617 is a prime.

It is a super-2 number, since 2×89746986641² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89746986661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283811 + ... + 509943.

It is an arithmetic number, because the mean of its divisors is an integer number (12081774285).

Almost surely, 2^89746986641 is an apocalyptic number.

It is an amenable number.

89746986641 is a deficient number, since it is larger than the sum of its proper divisors (6907207639).

89746986641 is a wasteful number, since it uses less digits than its factorization.

89746986641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256675.

The product of its digits is 125411328, while the sum is 68.

The spelling of 89746986641 in words is "eighty-nine billion, seven hundred forty-six million, nine hundred eighty-six thousand, six hundred forty-one".