89154444061 has 2 divisors, whose sum is σ = 89154444062. Its totient is φ = 89154444060.

The previous prime is 89154444031. The next prime is 89154444073. The reversal of 89154444061 is 16044445198.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85136151961 + 4018292100 = 291781^2 + 63390^2 .

It is a cyclic number.

It is not a de Polignac number, because 89154444061 - 2¹⁵ = 89154411293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89154444031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44577222030 + 44577222031.

It is an arithmetic number, because the mean of its divisors is an integer number (44577222031).

Almost surely, 2^89154444061 is an apocalyptic number.

It is an amenable number.

89154444061 is a deficient number, since it is larger than the sum of its proper divisors (1).

89154444061 is an equidigital number, since it uses as much as digits as its factorization.

89154444061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 89154444061 in words is "eighty-nine billion, one hundred fifty-four million, four hundred forty-four thousand, sixty-one".