3546991639 has 8 divisors (see below), whose sum is σ = 3756254688. Its totient is φ = 3337797120.

The previous prime is 3546991633. The next prime is 3546991681. The reversal of 3546991639 is 9361996453.

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 3546991639 - 2¹⁵ = 3546958871 is a prime.

It is a super-2 number, since 2×3546991639² = 25162299374271812642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3546991639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3546991633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121599 + ... + 147919.

It is an arithmetic number, because the mean of its divisors is an integer number (469531836).

Almost surely, 2^3546991639 is an apocalyptic number.

3546991639 is a deficient number, since it is larger than the sum of its proper divisors (209263049).

3546991639 is a wasteful number, since it uses less digits than its factorization.

3546991639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34265.

The product of its digits is 4723920, while the sum is 55.

The square root of 3546991639 is about 59556.6254836521. The cubic root of 3546991639 is about 1525.0592669253.

The spelling of 3546991639 in words is "three billion, five hundred forty-six million, nine hundred ninety-one thousand, six hundred thirty-nine".