3705751861 has 12 divisors (see below), whose sum is σ = 4311813792. Its totient is φ = 3175591608.

The previous prime is 3705751837. The next prime is 3705751883. The reversal of 3705751861 is 1681575073.

3705751861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3705751861 - 2⁹ = 3705751349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3705751561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304846 + ... + 316768.

It is an arithmetic number, because the mean of its divisors is an integer number (359317816).

Almost surely, 2^3705751861 is an apocalyptic number.

It is an amenable number.

3705751861 is a deficient number, since it is larger than the sum of its proper divisors (606061931).

3705751861 is a wasteful number, since it uses less digits than its factorization.

3705751861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18280 (or 18273 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 3705751861 is about 60874.8869485603. The cubic root of 3705751861 is about 1547.4814264358.

The spelling of 3705751861 in words is "three billion, seven hundred five million, seven hundred fifty-one thousand, eight hundred sixty-one".