7621414521 has 8 divisors (see below), whose sum is σ = 11613584064. Its totient is φ = 4355094000.

The previous prime is 7621414477. The next prime is 7621414523. The reversal of 7621414521 is 1254141267.

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

It is not a de Polignac number, because 7621414521 - 2¹¹ = 7621412473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7621414523) 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, 181462230 + ... + 181462271.

It is an arithmetic number, because the mean of its divisors is an integer number (1451698008).

Almost surely, 2^7621414521 is an apocalyptic number.

It is an amenable number.

7621414521 is a deficient number, since it is larger than the sum of its proper divisors (3992169543).

7621414521 is a wasteful number, since it uses less digits than its factorization.

7621414521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362924511.

The product of its digits is 13440, while the sum is 33.

The square root of 7621414521 is about 87300.7131757811. The cubic root of 7621414521 is about 1967.9400354668.

Adding to 7621414521 its reverse (1254141267), we get a palindrome (8875555788).

The spelling of 7621414521 in words is "seven billion, six hundred twenty-one million, four hundred fourteen thousand, five hundred twenty-one".