94090041081 has 27 divisors (see below), whose sum is σ = 138330223759. Its totient is φ = 61627947792.

The previous prime is 94090041079. The next prime is 94090041121. The reversal of 94090041081 is 18014009049.

The square root of 94090041081 is 306741.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 41793669225 + 52296371856 = 204435^2 + 228684^2 .

It is not a de Polignac number, because 94090041081 - 2¹ = 94090041079 is a prime.

It is a super-2 number, since 2×94090041081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (94090041041) 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 26 ways as a sum of consecutive naturals, for example, 54292291 + ... + 54294023.

Almost surely, 2^94090041081 is an apocalyptic number.

94090041081 is the 306741-st square number.

94090041081 is the 153371-st centered octagonal number.

It is an amenable number.

94090041081 is a deficient number, since it is larger than the sum of its proper divisors (44240182678).

94090041081 is an frugal number, since it uses more digits than its factorization.

94090041081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3590 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

Multiplying 94090041081 by its sum of digits (36), we get a square (3387241478916 = 1840446²).

The spelling of 94090041081 in words is "ninety-four billion, ninety million, forty-one thousand, eighty-one".