3491945715864 has 32 divisors (see below), whose sum is σ = 8942787811440. Its totient is φ = 1135592102400.

The previous prime is 3491945715809. The next prime is 3491945715893. The reversal of 3491945715864 is 4685175491943.

It is a junction number, because it is equal to n+sod(n) for n = 3491945715795 and 3491945715804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1774361677 + ... + 1774363644.

Almost surely, 2^{3491945715864} is an apocalyptic number.

It is an amenable number.

3491945715864 is an abundant number, since it is smaller than the sum of its proper divisors (5450842095576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3491945715864 is a wasteful number, since it uses less digits than its factorization.

3491945715864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548725371 (or 3548725367 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 66.

The spelling of 3491945715864 in words is "three trillion, four hundred ninety-one billion, nine hundred forty-five million, seven hundred fifteen thousand, eight hundred sixty-four".