3545682709861 has 8 divisors (see below), whose sum is σ = 3563950189464. Its totient is φ = 3527457177600.

The previous prime is 3545682709859. The next prime is 3545682709909. The reversal of 3545682709861 is 1689072865453.

3545682709861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3255047430625 + 290635279236 = 1804175^2 + 539106^2 .

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 3545682709861 - 2¹ = 3545682709859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3545682709793 and 3545682709802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545682709801) 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, 10317340 + ... + 10655461.

It is an arithmetic number, because the mean of its divisors is an integer number (445493773683).

It is a 1-persistent number, because it is pandigital, but 2⋅3545682709861 = 7091365419722 is not.

Almost surely, 2^{3545682709861} is an apocalyptic number.

It is an amenable number.

3545682709861 is a deficient number, since it is larger than the sum of its proper divisors (18267479603).

3545682709861 is a wasteful number, since it uses less digits than its factorization.

3545682709861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20973671.

The product of its (nonzero) digits is 87091200, while the sum is 64.

The spelling of 3545682709861 in words is "three trillion, five hundred forty-five billion, six hundred eighty-two million, seven hundred nine thousand, eight hundred sixty-one".