9091470065 has 4 divisors (see below), whose sum is σ = 10909764084. Its totient is φ = 7273176048.

The previous prime is 9091470049. The next prime is 9091470097. The reversal of 9091470065 is 5600741909.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1521078001 + 7570392064 = 39001^2 + 87008^2 .

It is a cyclic number.

It is not a de Polignac number, because 9091470065 - 2⁴ = 9091470049 is a prime.

It is a super-2 number, since 2×9091470065² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909147002 + ... + 909147011.

It is an arithmetic number, because the mean of its divisors is an integer number (2727441021).

Almost surely, 2^9091470065 is an apocalyptic number.

It is an amenable number.

9091470065 is a deficient number, since it is larger than the sum of its proper divisors (1818294019).

9091470065 is a wasteful number, since it uses less digits than its factorization.

9091470065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818294018.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 9091470065 is about 95349.2006521292. The cubic root of 9091470065 is about 2087.1069504645.

The spelling of 9091470065 in words is "nine billion, ninety-one million, four hundred seventy thousand, sixty-five".