9561951548704 has 96 divisors (see below), whose sum is σ = 19609086873600. Its totient is φ = 4586776346880.

The previous prime is 9561951548701. The next prime is 9561951548749. The reversal of 9561951548704 is 4078451591659.

It is not an unprimeable number, because it can be changed into a prime (9561951548701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16225939 + ... + 16804909.

It is an arithmetic number, because the mean of its divisors is an integer number (204261321600).

Almost surely, 2^{9561951548704} is an apocalyptic number.

9561951548704 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9561951548704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9804543436800).

9561951548704 is an abundant number, since it is smaller than the sum of its proper divisors (10047135324896).

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

9561951548704 is a wasteful number, since it uses less digits than its factorization.

9561951548704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579246 (or 579238 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 64.

The spelling of 9561951548704 in words is "nine trillion, five hundred sixty-one billion, nine hundred fifty-one million, five hundred forty-eight thousand, seven hundred four".