3486776813 has 4 divisors (see below), whose sum is σ = 3754990428. Its totient is φ = 3218563200.

The previous prime is 3486776809. The next prime is 3486776851. The reversal of 3486776813 is 3186776843.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2263666084 + 1223110729 = 47578^2 + 34973^2 .

It is a cyclic number.

It is not a de Polignac number, because 3486776813 - 2² = 3486776809 is a prime.

It is a super-2 number, since 2×3486776813² = 24315225087348873938, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3486776873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134106788 + ... + 134106813.

It is an arithmetic number, because the mean of its divisors is an integer number (938747607).

Almost surely, 2^3486776813 is an apocalyptic number.

It is an amenable number.

3486776813 is a deficient number, since it is larger than the sum of its proper divisors (268213615).

3486776813 is a wasteful number, since it uses less digits than its factorization.

3486776813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268213614.

The product of its digits is 4064256, while the sum is 53.

The square root of 3486776813 is about 59048.9357482419. The cubic root of 3486776813 is about 1516.3800070125.

The spelling of 3486776813 in words is "three billion, four hundred eighty-six million, seven hundred seventy-six thousand, eight hundred thirteen".