3786379997686 has 128 divisors (see below), whose sum is σ = 7113832169472. Its totient is φ = 1484924160000.

The previous prime is 3786379997683. The next prime is 3786379997717. The reversal of 3786379997686 is 6867999736873.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3786379997597 and 3786379997606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3786379997683) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 968134071 + ... + 968137981.

It is an arithmetic number, because the mean of its divisors is an integer number (55576813824).

Almost surely, 2^{3786379997686} is an apocalyptic number.

3786379997686 is a deficient number, since it is larger than the sum of its proper divisors (3327452171786).

3786379997686 is a wasteful number, since it uses less digits than its factorization.

3786379997686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5278.

The product of its digits is 31109847552, while the sum is 88.

The spelling of 3786379997686 in words is "three trillion, seven hundred eighty-six billion, three hundred seventy-nine million, nine hundred ninety-seven thousand, six hundred eighty-six".