9057649381 has 16 divisors (see below), whose sum is σ = 9914793408. Its totient is φ = 8206185600.

The previous prime is 9057649333. The next prime is 9057649423. The reversal of 9057649381 is 1839467509.

It is a happy number.

9057649381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9057649381 - 2⁹ = 9057648869 is a prime.

It is a super-2 number, since 2×9057649381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9057647381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6115161 + ... + 6116641.

It is an arithmetic number, because the mean of its divisors is an integer number (619674588).

Almost surely, 2^9057649381 is an apocalyptic number.

It is an amenable number.

9057649381 is a deficient number, since it is larger than the sum of its proper divisors (857144027).

9057649381 is a wasteful number, since it uses less digits than its factorization.

9057649381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 9057649381 is about 95171.6837142225. The cubic root of 9057649381 is about 2084.5156901982.

The spelling of 9057649381 in words is "nine billion, fifty-seven million, six hundred forty-nine thousand, three hundred eighty-one".