3949371320266 has 8 divisors (see below), whose sum is σ = 5924133781380. Its totient is φ = 1974660059808.

The previous prime is 3949371320249. The next prime is 3949371320287. The reversal of 3949371320266 is 6620231739493.

It can be written as a sum of positive squares in 2 ways, for example, as 3788025301225 + 161346019041 = 1946285^2 + 401679^2 .

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

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, 12606741 + ... + 12916216.

Almost surely, 2^{3949371320266} is an apocalyptic number.

3949371320266 is a deficient number, since it is larger than the sum of its proper divisors (1974762461114).

3949371320266 is a wasteful number, since it uses less digits than its factorization.

3949371320266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25600328.

The product of its (nonzero) digits is 8817984, while the sum is 55.

The spelling of 3949371320266 in words is "three trillion, nine hundred forty-nine billion, three hundred seventy-one million, three hundred twenty thousand, two hundred sixty-six".