264401279929 has 8 divisors (see below), whose sum is σ = 275956444800. Its totient is φ = 252851069856.

The previous prime is 264401279921. The next prime is 264401279959. The reversal of 264401279929 is 929972104462.

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 264401279929 - 2³ = 264401279921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264401279929.

It is not an unprimeable number, because it can be changed into a prime (264401279921) 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, 1129437 + ... + 1343290.

It is an arithmetic number, because the mean of its divisors is an integer number (34494555600).

Almost surely, 2^264401279929 is an apocalyptic number.

It is an amenable number.

264401279929 is a deficient number, since it is larger than the sum of its proper divisors (11555164871).

264401279929 is a wasteful number, since it uses less digits than its factorization.

264401279929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477399.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 264401279929 in words is "two hundred sixty-four billion, four hundred one million, two hundred seventy-nine thousand, nine hundred twenty-nine".