3685780673279 has 8 divisors (see below), whose sum is σ = 3756475468800. Its totient is φ = 3615607611000.

The previous prime is 3685780673173. The next prime is 3685780673287. The reversal of 3685780673279 is 9723760875863.

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 3685780673279 - 2³² = 3681485705983 is a prime.

It is a super-2 number, since 2×3685780673279² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685780673299) 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, 130419047 + ... + 130447304.

It is an arithmetic number, because the mean of its divisors is an integer number (469559433600).

Almost surely, 2^{3685780673279} is an apocalyptic number.

3685780673279 is a deficient number, since it is larger than the sum of its proper divisors (70694795521).

3685780673279 is a wasteful number, since it uses less digits than its factorization.

3685780673279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260866621.

The product of its (nonzero) digits is 640120320, while the sum is 71.

The spelling of 3685780673279 in words is "three trillion, six hundred eighty-five billion, seven hundred eighty million, six hundred seventy-three thousand, two hundred seventy-nine".