785793650009 has 2 divisors, whose sum is σ = 785793650010. Its totient is φ = 785793650008.

The previous prime is 785793650003. The next prime is 785793650027. The reversal of 785793650009 is 900056397587.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 417126097609 + 368667552400 = 645853^2 + 607180^2 .

It is a cyclic number.

It is not a de Polignac number, because 785793650009 - 2¹² = 785793645913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 785793650009.

It is not a weakly prime, because it can be changed into another prime (785793650003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392896825004 + 392896825005.

It is an arithmetic number, because the mean of its divisors is an integer number (392896825005).

Almost surely, 2^785793650009 is an apocalyptic number.

It is an amenable number.

785793650009 is a deficient number, since it is larger than the sum of its proper divisors (1).

785793650009 is an equidigital number, since it uses as much as digits as its factorization.

785793650009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14288400, while the sum is 59.

The spelling of 785793650009 in words is "seven hundred eighty-five billion, seven hundred ninety-three million, six hundred fifty thousand, nine".