4136995621 has 8 divisors (see below), whose sum is σ = 4522755744. Its totient is φ = 3752847120.

The previous prime is 4136995619. The next prime is 4136995669. The reversal of 4136995621 is 1265996314.

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

It is not a de Polignac number, because 4136995621 - 2¹ = 4136995619 is a prime.

It is a super-2 number, since 2×4136995621² = 34229465536346351282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4136995691) 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, 397530 + ... + 407803.

It is an arithmetic number, because the mean of its divisors is an integer number (565344468).

Almost surely, 2^4136995621 is an apocalyptic number.

It is an amenable number.

4136995621 is a deficient number, since it is larger than the sum of its proper divisors (385760123).

4136995621 is a wasteful number, since it uses less digits than its factorization.

4136995621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805811.

The product of its digits is 349920, while the sum is 46.

The square root of 4136995621 is about 64319.4808825444. The cubic root of 4136995621 is about 1605.3202611396.

The spelling of 4136995621 in words is "four billion, one hundred thirty-six million, nine hundred ninety-five thousand, six hundred twenty-one".