4091961807 has 48 divisors (see below), whose sum is σ = 6206695040. Its totient is φ = 2693894112.

The previous prime is 4091961803. The next prime is 4091961833. The reversal of 4091961807 is 7081691904.

It is a happy number.

It is not a de Polignac number, because 4091961807 - 2² = 4091961803 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4091961803) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10796544 + ... + 10796922.

Almost surely, 2^4091961807 is an apocalyptic number.

4091961807 is a deficient number, since it is larger than the sum of its proper divisors (2114733233).

4091961807 is a wasteful number, since it uses less digits than its factorization.

4091961807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 4091961807 is about 63968.4438375673. The cubic root of 4091961807 is about 1599.4740207299.

The spelling of 4091961807 in words is "four billion, ninety-one million, nine hundred sixty-one thousand, eight hundred seven".