8961405736 has 16 divisors (see below), whose sum is σ = 16804059840. Its totient is φ = 4480323120.

The previous prime is 8961405703. The next prime is 8961405743. The reversal of 8961405736 is 6375041698.

It is a self number, because there is not a number n which added to its sum of digits gives 8961405736.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69891 + ... + 151021.

It is an arithmetic number, because the mean of its divisors is an integer number (1050253740).

Almost surely, 2^8961405736 is an apocalyptic number.

It is an amenable number.

8961405736 is a deficient number, since it is larger than the sum of its proper divisors (7842654104).

8961405736 is a wasteful number, since it uses less digits than its factorization.

8961405736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94944 (or 94940 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 8961405736 is about 94664.7016368826. The cubic root of 8961405736 is about 2077.1062552374.

The spelling of 8961405736 in words is "eight billion, nine hundred sixty-one million, four hundred five thousand, seven hundred thirty-six".