30961926026240 has 352 divisors, whose sum is σ = 83870164537344. Its totient is φ = 10868238581760.

The previous prime is 30961926026183. The next prime is 30961926026263. The reversal of 30961926026240 is 4262062916903.

It is a tau number, because it is divible by the number of its divisors (352).

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, 264589184 + ... + 264706176.

Almost surely, 2^{30961926026240} 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 30961926026240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41935082268672).

30961926026240 is an abundant number, since it is smaller than the sum of its proper divisors (52908238511104).

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

30961926026240 is a wasteful number, since it uses less digits than its factorization.

30961926026240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117193 (or 117175 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 30961926026240 in words is "thirty trillion, nine hundred sixty-one billion, nine hundred twenty-six million, twenty-six thousand, two hundred forty".