3830735387721 has 16 divisors (see below), whose sum is σ = 5573222428608. Its totient is φ = 2321139609600.

The previous prime is 3830735387693. The next prime is 3830735387723. The reversal of 3830735387721 is 1277835370383.

It is not a de Polignac number, because 3830735387721 - 2⁶ = 3830735387657 is a prime.

It is a super-2 number, since 2×3830735387721² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3830735387723) 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, 12804916 + ... + 13100661.

It is an arithmetic number, because the mean of its divisors is an integer number (348326401788).

Almost surely, 2^{3830735387721} is an apocalyptic number.

It is an amenable number.

3830735387721 is a deficient number, since it is larger than the sum of its proper divisors (1742487040887).

3830735387721 is a wasteful number, since it uses less digits than its factorization.

3830735387721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25910072.

The product of its (nonzero) digits is 17781120, while the sum is 57.

The spelling of 3830735387721 in words is "three trillion, eight hundred thirty billion, seven hundred thirty-five million, three hundred eighty-seven thousand, seven hundred twenty-one".