3780669091671 has 32 divisors (see below), whose sum is σ = 5622491197440. Its totient is φ = 2510788816800.

The previous prime is 3780669091579. The next prime is 3780669091681. The reversal of 3780669091671 is 1761909660873.

It is a de Polignac number, because none of the positive numbers 2^k-3780669091671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3780669091599 and 3780669091608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780669091681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7446306 + ... + 7937808.

It is an arithmetic number, because the mean of its divisors is an integer number (175702849920).

Almost surely, 2^{3780669091671} is an apocalyptic number.

3780669091671 is a deficient number, since it is larger than the sum of its proper divisors (1841822105769).

3780669091671 is a wasteful number, since it uses less digits than its factorization.

3780669091671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492604 (or 492598 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 3780669091671 in words is "three trillion, seven hundred eighty billion, six hundred sixty-nine million, ninety-one thousand, six hundred seventy-one".