47659541080921 has 27 divisors (see below), whose sum is σ = 60939620654367. Its totient is φ = 37136890523040.

The previous prime is 47659541080909. The next prime is 47659541080937. The reversal of 47659541080921 is 12908014595674.

The square root of 47659541080921 is 6903589.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 47116761147225 + 542779933696 = 6864165^2 + 736736^2 .

It is not a de Polignac number, because 47659541080921 - 2²¹ = 47659538983769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47659541080921.

It is not an unprimeable number, because it can be changed into a prime (47659541080121) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 531531525 + ... + 531621181.

Almost surely, 2^{47659541080921} is an apocalyptic number.

47659541080921 is the 6903589-th square number.

47659541080921 is the 3451795-th centered octagonal number.

It is an amenable number.

47659541080921 is a deficient number, since it is larger than the sum of its proper divisors (13280079573446).

47659541080921 is an frugal number, since it uses more digits than its factorization.

47659541080921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179350 (or 89675 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 47659541080921 in words is "forty-seven trillion, six hundred fifty-nine billion, five hundred forty-one million, eighty thousand, nine hundred twenty-one".