90894644854801 has 4 divisors (see below), whose sum is σ = 90894830920000. Its totient is φ = 90894458789604.

The previous prime is 90894644854771. The next prime is 90894644854823. The reversal of 90894644854801 is 10845844649809.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90894644854801 - 2⁹ = 90894644854289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90894644854301) 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 3 ways as a sum of consecutive naturals, for example, 92297901 + ... + 93277498.

It is an arithmetic number, because the mean of its divisors is an integer number (22723707730000).

Almost surely, 2^{90894644854801} is an apocalyptic number.

It is an amenable number.

90894644854801 is a deficient number, since it is larger than the sum of its proper divisors (186065199).

90894644854801 is a wasteful number, since it uses less digits than its factorization.

90894644854801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186065198.

The product of its (nonzero) digits is 318504960, while the sum is 70.

The spelling of 90894644854801 in words is "ninety trillion, eight hundred ninety-four billion, six hundred forty-four million, eight hundred fifty-four thousand, eight hundred one".