10961943972 has 96 divisors (see below), whose sum is σ = 31057393920. Its totient is φ = 2942231040.

The previous prime is 10961943959. The next prime is 10961943973. The reversal of 10961943972 is 27934916901.

It is not an unprimeable number, because it can be changed into a prime (10961943973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29322 + ... + 150942.

It is an arithmetic number, because the mean of its divisors is an integer number (323514520).

Almost surely, 2^10961943972 is an apocalyptic number.

10961943972 is a gapful number since it is divisible by the number (12) 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 10961943972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15528696960).

10961943972 is an abundant number, since it is smaller than the sum of its proper divisors (20095449948).

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

10961943972 is a wasteful number, since it uses less digits than its factorization.

10961943972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121701 (or 121699 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 10961943972 in words is "ten billion, nine hundred sixty-one million, nine hundred forty-three thousand, nine hundred seventy-two".