2921365081 has 8 divisors (see below), whose sum is σ = 3001106240. Its totient is φ = 2841665328.

The previous prime is 2921365037. The next prime is 2921365099. The reversal of 2921365081 is 1805631292.

2921365081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2921365081 - 2¹¹ = 2921363033 is a prime.

It is a super-3 number, since 3×2921365081³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 2921365081.

It is not an unprimeable number, because it can be changed into a prime (2921345081) 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, 179380 + ... + 194986.

It is an arithmetic number, because the mean of its divisors is an integer number (375138280).

Almost surely, 2^2921365081 is an apocalyptic number.

It is an amenable number.

2921365081 is a deficient number, since it is larger than the sum of its proper divisors (79741159).

2921365081 is a wasteful number, since it uses less digits than its factorization.

2921365081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20703.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2921365081 is about 54049.6538471802. The cubic root of 2921365081 is about 1429.5365967128.

The spelling of 2921365081 in words is "two billion, nine hundred twenty-one million, three hundred sixty-five thousand, eighty-one".