3260418557761 has 4 divisors (see below), whose sum is σ = 3263649895300. Its totient is φ = 3257187220224.

The previous prime is 3260418557743. The next prime is 3260418557771. The reversal of 3260418557761 is 1677558140623.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 561360577600 + 2699057980161 = 749240^2 + 1642881^2 .

It is a cyclic number.

It is not a de Polignac number, because 3260418557761 - 2²³ = 3260410169153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3260418557771) 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, 1615667256 + ... + 1615669273.

It is an arithmetic number, because the mean of its divisors is an integer number (815912473825).

Almost surely, 2^{3260418557761} is an apocalyptic number.

It is an amenable number.

3260418557761 is a deficient number, since it is larger than the sum of its proper divisors (3231337539).

3260418557761 is a wasteful number, since it uses less digits than its factorization.

3260418557761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231337538.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 3260418557761 in words is "three trillion, two hundred sixty billion, four hundred eighteen million, five hundred fifty-seven thousand, seven hundred sixty-one".