4071638461 has 8 divisors (see below), whose sum is σ = 4456950624. Its totient is φ = 3688853520.

The previous prime is 4071638453. The next prime is 4071638477. The reversal of 4071638461 is 1648361704.

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

It is not a de Polignac number, because 4071638461 - 2³ = 4071638453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4071638401) 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, 628431 + ... + 634876.

It is an arithmetic number, because the mean of its divisors is an integer number (557118828).

Almost surely, 2^4071638461 is an apocalyptic number.

It is an amenable number.

4071638461 is a deficient number, since it is larger than the sum of its proper divisors (385312163).

4071638461 is a wasteful number, since it uses less digits than its factorization.

4071638461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263611.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 4071638461 is about 63809.3916363414. The cubic root of 4071638461 is about 1596.8216149580.

The spelling of 4071638461 in words is "four billion, seventy-one million, six hundred thirty-eight thousand, four hundred sixty-one".