9640899121410 has 192 divisors, whose sum is σ = 27260115062400. Its totient is φ = 2421708387840.

The previous prime is 9640899121393. The next prime is 9640899121421. The reversal of 9640899121410 is 141219980469.

9640899121410 is a `hidden beast` number, since 9 + 6 + 40 + 89 + 91 + 21 + 410 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12795997 + ... + 13528463.

It is an arithmetic number, because the mean of its divisors is an integer number (141979765950).

Almost surely, 2^{9640899121410} is an apocalyptic number.

9640899121410 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9640899121410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13630057531200).

9640899121410 is an abundant number, since it is smaller than the sum of its proper divisors (17619215940990).

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

9640899121410 is a wasteful number, since it uses less digits than its factorization.

9640899121410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732594 (or 732547 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 9640899121410 in words is "nine trillion, six hundred forty billion, eight hundred ninety-nine million, one hundred twenty-one thousand, four hundred ten".