9649558090 has 16 divisors (see below), whose sum is σ = 17537839488. Its totient is φ = 3822348816.

The previous prime is 9649558073. The next prime is 9649558123. The reversal of 9649558090 is 908559469.

It is a happy number.

It is a super-2 number, since 2×9649558090² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4683222 + ... + 4685281.

It is an arithmetic number, because the mean of its divisors is an integer number (1096114968).

Almost surely, 2^9649558090 is an apocalyptic number.

9649558090 is a deficient number, since it is larger than the sum of its proper divisors (7888281398).

9649558090 is a wasteful number, since it uses less digits than its factorization.

9649558090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9368613.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The square root of 9649558090 is about 98232.1642335137. The cubic root of 9649558090 is about 2128.9680388303.

The spelling of 9649558090 in words is "nine billion, six hundred forty-nine million, five hundred fifty-eight thousand, ninety".