3715351116721 has 16 divisors (see below), whose sum is σ = 3934692542160. Its totient is φ = 3503064499200.

The previous prime is 3715351116703. The next prime is 3715351116769. The reversal of 3715351116721 is 1276111535173.

It can be written as a sum of positive squares in 8 ways, for example, as 207877636096 + 3507473480625 = 455936^2 + 1872825^2 .

It is a cyclic number.

It is not a de Polignac number, because 3715351116721 - 2⁵ = 3715351116689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3715351116821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8474340 + ... + 8901973.

It is an arithmetic number, because the mean of its divisors is an integer number (245918283885).

Almost surely, 2^{3715351116721} is an apocalyptic number.

It is an amenable number.

3715351116721 is a deficient number, since it is larger than the sum of its proper divisors (219341425439).

3715351116721 is a wasteful number, since it uses less digits than its factorization.

3715351116721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17376516.

The product of its digits is 132300, while the sum is 43.

The spelling of 3715351116721 in words is "three trillion, seven hundred fifteen billion, three hundred fifty-one million, one hundred sixteen thousand, seven hundred twenty-one".