9245856409 has 2 divisors, whose sum is σ = 9245856410. Its totient is φ = 9245856408.

The previous prime is 9245856401. The next prime is 9245856421. The reversal of 9245856409 is 9046585429.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9158490000 + 87366409 = 95700^2 + 9347^2 .

It is a cyclic number.

It is not a de Polignac number, because 9245856409 - 2³ = 9245856401 is a prime.

It is not a weakly prime, because it can be changed into another prime (9245856401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4622928204 + 4622928205.

It is an arithmetic number, because the mean of its divisors is an integer number (4622928205).

Almost surely, 2^9245856409 is an apocalyptic number.

It is an amenable number.

9245856409 is a deficient number, since it is larger than the sum of its proper divisors (1).

9245856409 is an equidigital number, since it uses as much as digits as its factorization.

9245856409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The square root of 9245856409 is about 96155.3763915466. The cubic root of 9245856409 is about 2098.8547352399.

It can be divided in two parts, 924585640 and 9, that added together give a square (924585649 = 30407²).

The spelling of 9245856409 in words is "nine billion, two hundred forty-five million, eight hundred fifty-six thousand, four hundred nine".