3729731507706 has 16 divisors (see below), whose sum is σ = 7564525875648. Its totient is φ = 1225733359200.

The previous prime is 3729731507639. The next prime is 3729731507707. The reversal of 3729731507706 is 6077051379273.

It is not an unprimeable number, because it can be changed into a prime (3729731507707) 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, 4377618715 + ... + 4377619566.

It is an arithmetic number, because the mean of its divisors is an integer number (472782867228).

Almost surely, 2^{3729731507706} is an apocalyptic number.

3729731507706 is an abundant number, since it is smaller than the sum of its proper divisors (3834794367942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3729731507706 is a wasteful number, since it uses less digits than its factorization.

3729731507706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8755238357.

The product of its (nonzero) digits is 11668860, while the sum is 57.

The spelling of 3729731507706 in words is "three trillion, seven hundred twenty-nine billion, seven hundred thirty-one million, five hundred seven thousand, seven hundred six".