90955782882009 has 6 divisors (see below), whose sum is σ = 131380575274026. Its totient is φ = 60637188588000.

The previous prime is 90955782882007. The next prime is 90955782882023. The reversal of 90955782882009 is 90028828755909.

90955782882009 is a `hidden beast` number, since 9 + 0 + 9 + 5 + 578 + 28 + 8 + 20 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 88703847465984 + 2251935416025 = 9418272^2 + 1500645^2 .

It is not a de Polignac number, because 90955782882009 - 2¹ = 90955782882007 is a prime.

It is a super-2 number, since 2×90955782882009² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90955782882001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5053099048992 + ... + 5053099049009.

It is an arithmetic number, because the mean of its divisors is an integer number (21896762545671).

Almost surely, 2^{90955782882009} is an apocalyptic number.

It is an amenable number.

90955782882009 is a deficient number, since it is larger than the sum of its proper divisors (40424792392017).

90955782882009 is a wasteful number, since it uses less digits than its factorization.

90955782882009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106198098007 (or 10106198098004 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 72.

The spelling of 90955782882009 in words is "ninety trillion, nine hundred fifty-five billion, seven hundred eighty-two million, eight hundred eighty-two thousand, nine".