3780645816711 has 4 divisors (see below), whose sum is σ = 5040861088952. Its totient is φ = 2520430544472.

The previous prime is 3780645816643. The next prime is 3780645816733. The reversal of 3780645816711 is 1176185460873.

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

It is not a de Polignac number, because 3780645816711 - 2⁷ = 3780645816583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780645816751) 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, 630107636116 + ... + 630107636121.

It is an arithmetic number, because the mean of its divisors is an integer number (1260215272238).

Almost surely, 2^{3780645816711} is an apocalyptic number.

3780645816711 is a deficient number, since it is larger than the sum of its proper divisors (1260215272241).

3780645816711 is a wasteful number, since it uses less digits than its factorization.

3780645816711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260215272240.

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 3780645816711 in words is "three trillion, seven hundred eighty billion, six hundred forty-five million, eight hundred sixteen thousand, seven hundred eleven".