3689611948065 has 64 divisors (see below), whose sum is σ = 6292193011200. Its totient is φ = 1839734108160.

The previous prime is 3689611948063. The next prime is 3689611948081. The reversal of 3689611948065 is 5608491169863.

It is not a de Polignac number, because 3689611948065 - 2¹ = 3689611948063 is a prime.

It is a super-2 number, since 2×3689611948065² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3689611947987 and 3689611948005.

It is not an unprimeable number, because it can be changed into a prime (3689611948063) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 174101620 + ... + 174122810.

It is an arithmetic number, because the mean of its divisors is an integer number (98315515800).

Almost surely, 2^{3689611948065} is an apocalyptic number.

It is an amenable number.

3689611948065 is a deficient number, since it is larger than the sum of its proper divisors (2602581063135).

3689611948065 is a wasteful number, since it uses less digits than its factorization.

3689611948065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25722.

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 3689611948065 in words is "three trillion, six hundred eighty-nine billion, six hundred eleven million, nine hundred forty-eight thousand, sixty-five".