8012961646 has 4 divisors (see below), whose sum is σ = 12019442472. Its totient is φ = 4006480822.

The previous prime is 8012961643. The next prime is 8012961673. The reversal of 8012961646 is 6461692108.

8012961646 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012961643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2003240410 + ... + 2003240413.

It is an arithmetic number, because the mean of its divisors is an integer number (3004860618).

Almost surely, 2^8012961646 is an apocalyptic number.

8012961646 is a deficient number, since it is larger than the sum of its proper divisors (4006480826).

8012961646 is a wasteful number, since it uses less digits than its factorization.

8012961646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006480825.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 8012961646 is about 89515.1475784965. The cubic root of 8012961646 is about 2001.0795543430.

The spelling of 8012961646 in words is "eight billion, twelve million, nine hundred sixty-one thousand, six hundred forty-six".