9649231595890 has 16 divisors (see below), whose sum is σ = 17370418209408. Its totient is φ = 3859292341296.

The previous prime is 9649231595869. The next prime is 9649231595893. The reversal of 9649231595890 is 985951329469.

It is a super-2 number, since 2×9649231595890² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9649231595893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49935882 + ... + 50128741.

It is an arithmetic number, because the mean of its divisors is an integer number (1085651138088).

Almost surely, 2^{9649231595890} is an apocalyptic number.

9649231595890 is a deficient number, since it is larger than the sum of its proper divisors (7721186613518).

9649231595890 is a wasteful number, since it uses less digits than its factorization.

9649231595890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100074273.

The product of its (nonzero) digits is 188956800, while the sum is 70.

The spelling of 9649231595890 in words is "nine trillion, six hundred forty-nine billion, two hundred thirty-one million, five hundred ninety-five thousand, eight hundred ninety".