3815668461 has 8 divisors (see below), whose sum is σ = 5550063264. Its totient is φ = 2312526320.

The previous prime is 3815668399. The next prime is 3815668481. The reversal of 3815668461 is 1648665183.

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 3815668461 - 2⁶ = 3815668397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3815668461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3815668481) 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, 57813126 + ... + 57813191.

It is an arithmetic number, because the mean of its divisors is an integer number (693757908).

Almost surely, 2^3815668461 is an apocalyptic number.

It is an amenable number.

3815668461 is a deficient number, since it is larger than the sum of its proper divisors (1734394803).

3815668461 is a wasteful number, since it uses less digits than its factorization.

3815668461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115626331.

The product of its digits is 829440, while the sum is 48.

The square root of 3815668461 is about 61771.0972947705. The cubic root of 3815668461 is about 1562.6325892904.

It can be divided in two parts, 3815 and 668461, that added together give a palindrome (672276).

The spelling of 3815668461 in words is "three billion, eight hundred fifteen million, six hundred sixty-eight thousand, four hundred sixty-one".