5913021621 has 8 divisors (see below), whose sum is σ = 8490492640. Its totient is φ = 3638782512.

The previous prime is 5913021607. The next prime is 5913021629. The reversal of 5913021621 is 1261203195.

5913021621 is digitally balanced in base 3, 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 not a de Polignac number, because 5913021621 - 2⁶ = 5913021557 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 (5913021629) 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, 75807931 + ... + 75808008.

It is an arithmetic number, because the mean of its divisors is an integer number (1061311580).

Almost surely, 2^5913021621 is an apocalyptic number.

It is an amenable number.

5913021621 is a deficient number, since it is larger than the sum of its proper divisors (2577471019).

5913021621 is a wasteful number, since it uses less digits than its factorization.

5913021621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151615955.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 5913021621 is about 76896.1742936539. The cubic root of 5913021621 is about 1808.2972520643.

The spelling of 5913021621 in words is "five billion, nine hundred thirteen million, twenty-one thousand, six hundred twenty-one".