9771894482450 has 24 divisors (see below), whose sum is σ = 18175898178480. Its totient is φ = 3908720278800.

The previous prime is 9771894482417. The next prime is 9771894482453. The reversal of 9771894482450 is 542844981779.

It is a super-2 number, since 2×9771894482450² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9771894482453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4654061 + ... + 6419039.

It is an arithmetic number, because the mean of its divisors is an integer number (757329090770).

Almost surely, 2^{9771894482450} is an apocalyptic number.

9771894482450 is a deficient number, since it is larger than the sum of its proper divisors (8404003696030).

9771894482450 is a wasteful number, since it uses less digits than its factorization.

9771894482450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875722 (or 1875717 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 68.

The spelling of 9771894482450 in words is "nine trillion, seven hundred seventy-one billion, eight hundred ninety-four million, four hundred eighty-two thousand, four hundred fifty".