8031906961 has 8 divisors (see below), whose sum is σ = 8948013480. Its totient is φ = 7158410112.

The previous prime is 8031906959. The next prime is 8031906973. The reversal of 8031906961 is 1696091308.

It can be written as a sum of positive squares in 4 ways, for example, as 138650625 + 7893256336 = 11775^2 + 88844^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8031906961 - 2¹ = 8031906959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8031906991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10652020 + ... + 10652773.

It is an arithmetic number, because the mean of its divisors is an integer number (1118501685).

Almost surely, 2^8031906961 is an apocalyptic number.

It is an amenable number.

8031906961 is a deficient number, since it is larger than the sum of its proper divisors (916106519).

8031906961 is a wasteful number, since it uses less digits than its factorization.

8031906961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21304835.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 8031906961 is about 89620.9069414051. The cubic root of 8031906961 is about 2002.6553863181.

The spelling of 8031906961 in words is "eight billion, thirty-one million, nine hundred six thousand, nine hundred sixty-one".