89739458661 has 16 divisors (see below), whose sum is σ = 120405297600. Its totient is φ = 59451076608.

The previous prime is 89739458647. The next prime is 89739458663. The reversal of 89739458661 is 16685493798.

It is not a de Polignac number, because 89739458661 - 2⁵ = 89739458629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89739458592 and 89739458601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89739458663) 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 15 ways as a sum of consecutive naturals, for example, 184155 + ... + 461943.

It is an arithmetic number, because the mean of its divisors is an integer number (7525331100).

Almost surely, 2^89739458661 is an apocalyptic number.

It is an amenable number.

89739458661 is a deficient number, since it is larger than the sum of its proper divisors (30665838939).

89739458661 is a wasteful number, since it uses less digits than its factorization.

89739458661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278468.

The product of its digits is 78382080, while the sum is 66.

The spelling of 89739458661 in words is "eighty-nine billion, seven hundred thirty-nine million, four hundred fifty-eight thousand, six hundred sixty-one".