3786725898721 has 4 divisors (see below), whose sum is σ = 3867294534912. Its totient is φ = 3706157262532.

The previous prime is 3786725898671. The next prime is 3786725898727. The reversal of 3786725898721 is 1278985276873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3786725898721 - 2¹⁵ = 3786725865953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3786725898727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40284318025 + ... + 40284318118.

It is an arithmetic number, because the mean of its divisors is an integer number (966823633728).

Almost surely, 2^{3786725898721} is an apocalyptic number.

It is an amenable number.

3786725898721 is a deficient number, since it is larger than the sum of its proper divisors (80568636191).

3786725898721 is an equidigital number, since it uses as much as digits as its factorization.

3786725898721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80568636190.

The product of its digits is 568995840, while the sum is 73.

The spelling of 3786725898721 in words is "three trillion, seven hundred eighty-six billion, seven hundred twenty-five million, eight hundred ninety-eight thousand, seven hundred twenty-one".