7613061221 has 8 divisors (see below), whose sum is σ = 7640421600. Its totient is φ = 7585733232.

The previous prime is 7613061217. The next prime is 7613061223. The reversal of 7613061221 is 1221603167.

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 7613061221 - 2² = 7613061217 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 (7613061223) 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, 524366 + ... + 538688.

It is an arithmetic number, because the mean of its divisors is an integer number (955052700).

Almost surely, 2^7613061221 is an apocalyptic number.

It is an amenable number.

7613061221 is a deficient number, since it is larger than the sum of its proper divisors (27360379).

7613061221 is a wasteful number, since it uses less digits than its factorization.

7613061221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16195.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 7613061221 is about 87252.8579531926. The cubic root of 7613061221 is about 1967.2207987723.

Adding to 7613061221 its reverse (1221603167), we get a palindrome (8834664388).

The spelling of 7613061221 in words is "seven billion, six hundred thirteen million, sixty-one thousand, two hundred twenty-one".