265263129979 has 8 divisors (see below), whose sum is σ = 265863126528. Its totient is φ = 264663703080.

The previous prime is 265263129941. The next prime is 265263129983. The reversal of 265263129979 is 979921362562.

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 265263129979 - 2⁷ = 265263129851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265263159979) 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, 796944 + ... + 1079650.

It is an arithmetic number, because the mean of its divisors is an integer number (33232890816).

Almost surely, 2^265263129979 is an apocalyptic number.

265263129979 is a deficient number, since it is larger than the sum of its proper divisors (599996549).

265263129979 is a wasteful number, since it uses less digits than its factorization.

265263129979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284825.

The product of its digits is 22044960, while the sum is 61.

The spelling of 265263129979 in words is "two hundred sixty-five billion, two hundred sixty-three million, one hundred twenty-nine thousand, nine hundred seventy-nine".