9649856615376 has 160 divisors (see below), whose sum is σ = 25345527782400. Its totient is φ = 3163093678080.

The previous prime is 9649856615363. The next prime is 9649856615383. The reversal of 9649856615376 is 6735166589469.

It is a junction number, because it is equal to n+sod(n) for n = 9649856615298 and 9649856615307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3330981160 + ... + 3330984056.

It is an arithmetic number, because the mean of its divisors is an integer number (158409548640).

Almost surely, 2^{9649856615376} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9649856615376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12672763891200).

9649856615376 is an abundant number, since it is smaller than the sum of its proper divisors (15695671167024).

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

9649856615376 is a wasteful number, since it uses less digits than its factorization.

9649856615376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177 (or 5171 counting only the distinct ones).

The product of its digits is 1763596800, while the sum is 75.

The spelling of 9649856615376 in words is "nine trillion, six hundred forty-nine billion, eight hundred fifty-six million, six hundred fifteen thousand, three hundred seventy-six".