260979330691 has 8 divisors (see below), whose sum is σ = 264664178784. Its totient is φ = 257294735040.

The previous prime is 260979330673. The next prime is 260979330713. The reversal of 260979330691 is 196033979062.

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 260979330691 - 2²⁷ = 260845112963 is a prime.

It is a super-2 number, since 2×260979330691² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260979330631) 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, 3202831 + ... + 3283303.

It is an arithmetic number, because the mean of its divisors is an integer number (33083022348).

Almost surely, 2^260979330691 is an apocalyptic number.

260979330691 is a deficient number, since it is larger than the sum of its proper divisors (3684848093).

260979330691 is an equidigital number, since it uses as much as digits as its factorization.

260979330691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126221.

The product of its (nonzero) digits is 3306744, while the sum is 55.

The spelling of 260979330691 in words is "two hundred sixty billion, nine hundred seventy-nine million, three hundred thirty thousand, six hundred ninety-one".