3870661766567 has 8 divisors (see below), whose sum is σ = 3890088414576. Its totient is φ = 3851255954752.

The previous prime is 3870661766561. The next prime is 3870661766617. The reversal of 3870661766567 is 7656671660783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3870661766567 - 2⁴ = 3870661766551 is a prime.

It is a super-2 number, since 2×3870661766567² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3870661766497 and 3870661766506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870661766561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4836518 + ... + 5579715.

It is an arithmetic number, because the mean of its divisors is an integer number (486261051822).

Almost surely, 2^{3870661766567} is an apocalyptic number.

3870661766567 is a deficient number, since it is larger than the sum of its proper divisors (19426648009).

3870661766567 is a wasteful number, since it uses less digits than its factorization.

3870661766567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10418097.

The product of its (nonzero) digits is 320060160, while the sum is 68.

The spelling of 3870661766567 in words is "three trillion, eight hundred seventy billion, six hundred sixty-one million, seven hundred sixty-six thousand, five hundred sixty-seven".