82840472950009 has 2 divisors, whose sum is σ = 82840472950010. Its totient is φ = 82840472950008.

The previous prime is 82840472949973. The next prime is 82840472950013. The reversal of 82840472950009 is 90005927404828.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76034912040000 + 6805560910009 = 8719800^2 + 2608747^2 .

It is a cyclic number.

It is not a de Polignac number, because 82840472950009 - 2²¹ = 82840470852857 is a prime.

It is not a weakly prime, because it can be changed into another prime (82840472950099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41420236475004 + 41420236475005.

It is an arithmetic number, because the mean of its divisors is an integer number (41420236475005).

Almost surely, 2^{82840472950009} is an apocalyptic number.

It is an amenable number.

82840472950009 is a deficient number, since it is larger than the sum of its proper divisors (1).

82840472950009 is an equidigital number, since it uses as much as digits as its factorization.

82840472950009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 82840472950009 in words is "eighty-two trillion, eight hundred forty billion, four hundred seventy-two million, nine hundred fifty thousand, nine".