6609761357 has 4 divisors (see below), whose sum is σ = 6689397120. Its totient is φ = 6530125596.

The previous prime is 6609761351. The next prime is 6609761359. The reversal of 6609761357 is 7531679066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6609761357 - 2¹⁶ = 6609695821 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 (6609761351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39817757 + ... + 39817922.

It is an arithmetic number, because the mean of its divisors is an integer number (1672349280).

Almost surely, 2^6609761357 is an apocalyptic number.

It is an amenable number.

6609761357 is a deficient number, since it is larger than the sum of its proper divisors (79635763).

6609761357 is an equidigital number, since it uses as much as digits as its factorization.

6609761357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79635762.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The square root of 6609761357 is about 81300.4388487541. The cubic root of 6609761357 is about 1876.7017540512.

The spelling of 6609761357 in words is "six billion, six hundred nine million, seven hundred sixty-one thousand, three hundred fifty-seven".