9161495628 has 12 divisors (see below), whose sum is σ = 21376823160. Its totient is φ = 3053831872.

The previous prime is 9161495573. The next prime is 9161495641. The reversal of 9161495628 is 8265941619.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×9161495628² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381728973 + ... + 381728996.

It is an arithmetic number, because the mean of its divisors is an integer number (1781401930).

Almost surely, 2^9161495628 is an apocalyptic number.

It is an amenable number.

9161495628 is an abundant number, since it is smaller than the sum of its proper divisors (12215327532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9161495628 is a wasteful number, since it uses less digits than its factorization.

9161495628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763457976 (or 763457974 counting only the distinct ones).

The product of its digits is 933120, while the sum is 51.

The square root of 9161495628 is about 95715.7020974093. The cubic root of 9161495628 is about 2092.4517847374.

The spelling of 9161495628 in words is "nine billion, one hundred sixty-one million, four hundred ninety-five thousand, six hundred twenty-eight".