3691332945 has 16 divisors (see below), whose sum is σ = 6562369920. Its totient is φ = 1968710832.

The previous prime is 3691332943. The next prime is 3691333001. The reversal of 3691332945 is 5492331963.

It is not a de Polignac number, because 3691332945 - 2¹ = 3691332943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3691332945.

It is not an unprimeable number, because it can be changed into a prime (3691332943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13671469 + ... + 13671738.

It is an arithmetic number, because the mean of its divisors is an integer number (410148120).

Almost surely, 2^3691332945 is an apocalyptic number.

It is an amenable number.

3691332945 is a deficient number, since it is larger than the sum of its proper divisors (2871036975).

3691332945 is a wasteful number, since it uses less digits than its factorization.

3691332945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27343221 (or 27343215 counting only the distinct ones).

The product of its digits is 524880, while the sum is 45.

The square root of 3691332945 is about 60756.3407802017. The cubic root of 3691332945 is about 1545.4717571529.

The spelling of 3691332945 in words is "three billion, six hundred ninety-one million, three hundred thirty-two thousand, nine hundred forty-five".