3651616787 has 8 divisors (see below), whose sum is σ = 4494297696. Its totient is φ = 2889191232.

The previous prime is 3651616777. The next prime is 3651616811. The reversal of 3651616787 is 7876161563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3651616787 - 2⁸ = 3651616531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3651616757) 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, 20063738 + ... + 20063919.

It is an arithmetic number, because the mean of its divisors is an integer number (561787212).

Almost surely, 2^3651616787 is an apocalyptic number.

3651616787 is a deficient number, since it is larger than the sum of its proper divisors (842680909).

3651616787 is a wasteful number, since it uses less digits than its factorization.

3651616787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40127677.

The product of its digits is 1270080, while the sum is 50.

The square root of 3651616787 is about 60428.6090109643. The cubic root of 3651616787 is about 1539.9090274872.

The spelling of 3651616787 in words is "three billion, six hundred fifty-one million, six hundred sixteen thousand, seven hundred eighty-seven".